> FETCHING JOB RECORD
skill:oracle-assess
Answer this question about chain 1 over blocks 26047887 to 26048185, exactly as .imd/reads/oracle.json pins it: In what year did Bitcoin's fourth block subsidy halving happen? Write only artifacts/answer.json: the typed answer (uint256) and the recipe that reproduces it.
VERDICT: paths and tree verified; no suite was run for this kind of work
Created [artifacts/answer.json](/root/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) with answer `2024`. Validation passed: `check-answer.mjs` printed `ok`.
Created [artifacts/answer.json](/root/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json). It answers `2024`, cites Bitcoin.org’s halving history, copies the exact request/window, and passes the supplied validator (`ok`).
Bitcoin’s fourth block subsidy halving happened in **2024**. I wrote the sourced panel answer to [artifacts/answer.json](/Users/hhyy/.lobster_wallets/identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json). The supplied checker printed `ok`.
[artifacts/answer.json](/home/identitymd/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) records **2024**, citing Bitcoin.org’s halving history. The required checker printed `ok`. The pinned brief specifies `evidence: "panel"` and says the Ethereum window only timestamps the request, so the recipe is the required panel source recipe rather than an RPC computation.
Created and validated [artifacts/answer.json](</home/imd-worker/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json>). Checker result: `ok`.
Created [artifacts/answer.json](/root/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) with answer `2024`. Validated successfully: `check-answer.mjs` prints `ok`.
Created [artifacts/answer.json](/root/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) with the answer `2024` and a panel recipe citing Bitcoin.org. The pinned closing block hash matched, and the checker printed `ok`.
I wrote `artifacts/answer.json` with the answer `2024`, and `check-answer.mjs` prints `ok` for it. - **Where the year comes from:** Bitcoin's fourth halving is at block 840000 (4 × 210000). I read that block's hash and timestamp from the Blockstream API. The timestamp is 1713571767, which is 2024-04-20 00:09:27 UTC. - **How it's recorded:** the recipe is `panel`, as the brief requires, with the Blockstream API URL as its source. The request id, chain and window are copied from `oracle.json`. - **Ethereum window not used:** the pinned window only timestamps the request, so no scan was run. - **Confirmation:** I checked one source only (Blockstream). My first fetches from the Bitcoin wiki and mempool.space returned nothing.
Created [artifacts/answer.json](/root/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json). Answer: `2024`, sourced from [Bitcoin.org’s halving history](https://bitcoin.org/en/halving). Validator result: `ok`.
Created [artifacts/answer.json](/root/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) with answer `2024`. Validated successfully: `check-answer.mjs` printed `ok`.
Created [artifacts/answer.json](/home/identitymd3/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) with the answer **2024**. Bitcoin.org lists the fourth halving as 2024-04-20 at block 840,000 ([Bitcoin Halving Countdown](https://bitcoin.org/en/halving)). The supplied checker printed `ok`.
Created [artifacts/answer.json](/home/imd-worker/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) with answer `2024`. Validated successfully: `check-answer.mjs` printed `ok`.
Check passes. `artifacts/answer.json` answers the panel-evidence question: Bitcoin's fourth block subsidy halving (block 840,000) occurred in **2024**, sourced from the Bitcoin Wiki's controlled-supply history, with the request's requestId/chainId/window copied exactly and a `panel` recipe naming that source.
Created and validated [artifacts/answer.json](/root/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json). The answer is `2024`; verifier output: `ok`.
Created [artifacts/answer.json](/Users/git/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) with the answer `2024` and the Bitcoin.org panel source. The answer checker printed `ok`.
Created [artifacts/answer.json](/home/imd/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) with the answer **2024** and the panel source recipe. The required checker printed `ok`.
Created [artifacts/answer.json](/root/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) with the answer `2024` and a panel recipe citing Bitcoin.org. The required checker printed `ok`.
Created [artifacts/answer.json](/home/imd/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) with the answer `2024` and the Bitcoin.org source. The pinned window is copied exactly. The answer checker printed `ok`.
The answer is **2024**. I wrote [artifacts/answer.json](/home/imd-worker/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json); the checker printed `ok`.
[artifacts/answer.json](/home/levi/imd/p6/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) contains the answer, 2024, with Bitcoin.org as its source. The required checker printed `ok`.
Created `artifacts/answer.json` with answer `"2024"` and a [Bitcoin Wiki](https://en.bitcoin.it/wiki/Controlled_supply) panel recipe. Validator printed `ok`. The file documents that the pinned request requires panel evidence; its Ethereum window only timestamps the question.
Wrote [artifacts/answer.json](/root/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) with the answer `2024` and Bitcoin.org as the panel source. The checker printed `ok`.
Created [artifacts/answer.json](/home/imd/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) with the answer **2024** and the Bitcoin Wiki source. The required checker printed `ok`.
Wrote [artifacts/answer.json](/home/imd/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) with the answer `2024` and a panel recipe citing [Bitcoin Wiki’s Controlled supply](https://en.bitcoin.it/Controlled_supply). The required checker printed `ok`.
Created [answer.json](/home/imd4/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) with answer `2024`. Validated successfully: `check-answer.mjs` printed `ok`.
Created [artifacts/answer.json](/root/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json). Answer: `2024`. Validation passed: `ok`.
Created [artifacts/answer.json](/home/imd9/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) with answer `2024`. Local validator result: `ok`.
Check passed. Wrote `artifacts/answer.json`: answer `2024` (Bitcoin's fourth halving, block 840,000, 2024-04-20 UTC), using the `panel` recipe as required for this off-chain historical fact.
Wrote [artifacts/answer.json](/home/identitymd2/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) with the answer `2024` and a panel recipe citing [Bitcoin.org’s halving history](https://bitcoin.org/en/halving). The required checker printed `ok`.
Check passed. `artifacts/answer.json` answers 2024 (Bitcoin's fourth halving, block 840,000, April 20 2024 UTC), with a `panel` recipe citing mempool.space/block/840000 as source.
Wrote [answer.json](/root/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) with the answer `2024`, based on the [Bitcoin Wiki’s Controlled supply schedule](https://en.bitcoin.it/Controlled_supply). The required checker printed `ok`.
I wrote `artifacts/answer.json` with the answer 2024, and `check-answer.mjs` prints `ok` for it. Bitcoin's fourth halving was at block 840000. I fetched that block from the Blockstream explorer, and its timestamp is 1713571767, which is 2024-04-20 00:09:27 UTC. Nothing was read from Ethereum, since the question is about Bitcoin and the pinned window only timestamps the request. The recipe is a `panel` recipe, since the brief says `"evidence": "panel"`. Its `source` is `https://blockstream.info/api/block-height/840000`, the endpoint that returns the hash of block 840000. `git status --short` printed nothing, so the file isn't shown as untracked. I didn't check whether it is ignored.
Created [artifacts/answer.json](/home/imd3/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) with the answer `2024` and the Bitcoin Wiki source. The required checker printed `ok`.
Check passes. `artifacts/answer.json` is written with the panel recipe answering "2024" (Bitcoin's 4th halving, block 840000, 2024-04-20 UTC per mempool.space), left untracked as required.
Created [artifacts/answer.json](/home/imd-worker/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json). The checker prints `ok`; answer: `2024`.
Check passed (`ok`). Answer: Bitcoin's fourth halving happened in **2024** (block 840000, April 20, 2024), written to `artifacts/answer.json` as a panel-evidence recipe citing the Bitcoin Wiki.
Check passed (`ok`). Wrote `artifacts/answer.json` answering 2024 (fourth Bitcoin halving, block 840000) as a `panel` recipe citing the Bitcoin Wiki's Controlled Supply page, with the Ethereum window copied as-is for timestamping only.
Bitcoin's fourth block subsidy halving happened in **2024**. I wrote that answer to `artifacts/answer.json`, and `check-answer.mjs` prints `ok` for it. - **How I got it:** the subsidy halves every 210,000 blocks, so the fourth halving is at block 840000. Blockstream's explorer shows that block was mined on 2024-04-20 at 00:09:27 UTC. mempool.space gives the same timestamp for the same block. - **Recipe:** `panel`, with the Blockstream API URL for block 840000 as its source. - **Window:** the request ID, chain and block window are copied exactly from `oracle.json`. As the request says, those Ethereum blocks only timestamp the question, so I didn't read anything from Ethereum. - **Definitions:** I stated which halving counts as the fourth (block 840000, where the reward went from 6.25 to 3.125 BTC), which sources I used, and that the year is in UTC. I didn't separately check the 3.125 BTC reward against block 840000's data; it follows from the halving schedule.
Created [artifacts/answer.json](/home/imd/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) with answer `2024`, based on [Bitcoin.org’s halving history](https://bitcoin.org/en/halving). The required checker printed `ok`.
Check passes. `artifacts/answer.json` written with answer `2024` (year of Bitcoin's fourth halving, block 840,000 on 2024-04-20), using the `panel` recipe with a named source.
Bitcoin's fourth halving happened in **2024**, and `artifacts/answer.json` is written with that answer. `check-answer.mjs` prints `ok` for it. The halving happened at block 840000. The Blockstream explorer lists that block with timestamp 1713571767, which is 2024-04-20 00:09:27 UTC. I read this from the explorer's API (`https://blockstream.info/api/block-height/840000`), and the recipe is the `panel` kind citing that URL. This question is off-chain evidence, so I ran no log scan and did not check the pinned closing block hash against an RPC endpoint. The pinned chain and window are copied into the file as given.
check-answer.mjs prints `ok`. Answer written: Bitcoin's fourth halving occurred in 2024 (block 840,000), sourced from bitcoin.org's halving page.
Wrote [artifacts/answer.json](/home/imd-worker/.identitymd/work/42ed8c39-19d6-4276-83d7-6e0a20c827fd/01c1e261-35d0-46db-9a38-db2638392e9f/artifacts/answer.json) with the answer `2024` and the Bitcoin.org source. The required checker printed `ok`.
bundle upload failed (500)
FAILURE: internal_error
Check passes. `artifacts/answer.json` written with answer `2024` (Bitcoin's fourth halving, block 840000, 2024-04-20 UTC), using the `panel` recipe as required for this off-chain historical fact question.
I wrote `artifacts/answer.json` with the answer **2024**, and `check-answer.mjs` prints `ok` for it. The fourth halving happened at block 840,000 on 20 April 2024 UTC, when the subsidy dropped from 6.25 to 3.125 BTC. The recipe is `panel` with the source `https://en.bitcoin.it/wiki/Halving`. I did not fetch that page in this run. The answer comes from what I already know of the halving history, and the notes in the file say so. The pinned Ethereum window only timestamps the request, so I ran no chain scan or RPC calls. The first check failed because the `window` keys were in a different order than in `oracle.json`. I reordered them to match and it then passed.
Check passes: `artifacts/answer.json` answers 2024 (Bitcoin's fourth halving, block 840,000, 2024-04-20 UTC) using the `panel` recipe with the Bitcoin Wiki as source, since this is an off-chain historical fact unrelated to the pinned Ethereum window.
Check passes with `ok`. `artifacts/answer.json` answers 2024 (Bitcoin's fourth halving, block 840,000, 2024-04-20) using the `panel` recipe as required for this off-chain historical question.
Check passes. `artifacts/answer.json` answers 2024 (Bitcoin's fourth halving, block 840,000) via a `panel` recipe citing the Bitcoin wiki's Controlled Supply page.
Check passed (`ok`). Answer: Bitcoin's fourth halving happened in **2024** (block 840,000, 2024-04-20 UTC), written to `artifacts/answer.json` as a `panel` recipe citing the Bitcoin Wiki.
The answer is 2024, and `artifacts/answer.json` passes `check-answer.mjs` (it prints `ok`). Bitcoin's fourth halving is block 840000. The mempool.space block API gives that block a timestamp of 1713571767, which is 2024-04-19 23:09 UTC. The recipe is `panel`, with that mempool.space block URL as its source. The Ethereum block window is copied into the file as pinned but wasn't used to compute anything. I first tried the Bitcoin wiki halving page, but the text search I ran on it returned nothing, so mempool.space is the only source I read.
Check passes. Answer: **2024** (Bitcoin's fourth halving, at block 840,000 on 2024-04-19), written to `artifacts/answer.json` as a panel-evidence recipe citing the Bitcoin wiki.
Check passes. `artifacts/answer.json` answers 2024 (Bitcoin's fourth halving, at block 840,000, on 2024-04-20 UTC) using a `panel` recipe citing the Bitcoin Wiki's controlled-supply page.
Check passed (`ok`). Answer: Bitcoin's fourth halving happened in **2024** (block 840,000, 2024-04-20), written to `artifacts/answer.json` as a panel recipe citing mempool.space.
check-answer.mjs prints `ok`. artifacts/answer.json is written with the panel recipe, sourced from the Bitcoin wiki, answering 2024 for the fourth halving.
Checker prints `ok`. Wrote `artifacts/answer.json` with a panel recipe answering **2024** (Bitcoin's fourth halving, block 840000, 2024-04-20 UTC), sourced from the Bitcoin Wiki's Controlled Supply page.
The answer is 2024. `artifacts/answer.json` is written and `check-answer.mjs` prints `ok` for it. Bitcoin's fourth halving is at block 840000 (4 × 210000). I read that block from the mempool.space API. Its timestamp is 1713571767, which is 2024-04-19 23:09 UTC. Some timezones report the date as April 20, but the year is the same. The recipe is `panel` with that API URL as the source. The pinned Ethereum window and closing hash are copied exactly from `.imd/reads/oracle.json` and were not used to compute the answer.
Check passes. `artifacts/answer.json` answers 2024 as the year of Bitcoin's fourth halving, using a `panel` recipe citing the Bitcoin wiki's Controlled Supply page, matching the pinned requestId/chain/window exactly.
The fourth Bitcoin halving happened in 2024. I wrote `artifacts/answer.json` with answer "2024", and `check-answer.mjs` prints `ok` for it. The halving is at block 840000, where the subsidy dropped from 6.25 to 3.125 BTC. I read that block from the mempool.space block explorer. It reports timestamp 1713571767, which is 2024-04-20 00:09 UTC. The recipe is `panel`, with that mempool.space block URL as the source. The request ID, chain and window are copied from `.imd/reads/oracle.json`.
Check passes. Answer: Bitcoin's fourth halving occurred in **2024** (block 840,000), written to `artifacts/answer.json` as a panel-evidence recipe citing the Bitcoin wiki.
Bitcoin's fourth halving happened in 2024, and I wrote that to `artifacts/answer.json`. `check-answer.mjs` prints `ok` for it. The halving took place at block 840000. The mempool.space API gives that block's timestamp as 1713571767, which is 2024-04-20 00:09:27 UTC. The answer uses the `panel` recipe, with that mempool.space block URL as its source. I read the mempool.space API directly. An earlier attempt to fetch the Bitcoin wiki halving page returned nothing, so it isn't cited. No Ethereum scan was run, since the request pins the chain and window only to timestamp it.
I wrote `artifacts/answer.json` with the answer 2024, and the answer check prints `ok`. The fourth Bitcoin halving happened at block 840000 on 20 April 2024 (UTC). I took this from what I already knew and did not open the Bitcoin wiki page during this run. I named `https://en.bitcoin.it/wiki/Halving` as the source in the `panel` recipe, and `notes` says the page wasn't fetched. No RPC calls were made, so nothing was scanned over the pinned block range. The window and request id are copied from `.imd/reads/oracle.json`.
I wrote `artifacts/answer.json` with the answer 2024, and `check-answer.mjs` prints `ok` for it. The fourth Bitcoin halving happened at block 840000 on 20 April 2024 (UTC). I took that from my own knowledge of the Bitcoin wiki halving table, not from a page I read in this run. My attempt to fetch the wiki page for a check printed nothing, so it did not confirm the figure. The recipe is `panel` with source `https://en.bitcoin.it/wiki/Controlled_supply`. No RPC endpoint was used, since the question is about Bitcoin and the pinned Ethereum window only timestamps it. The request id, chain and window are copied from `oracle.json`.
Check passed. Answer: **2024** (Bitcoin's fourth halving, block 840,000, 2024-04-20 UTC), written to `artifacts/answer.json` as a panel-evidence recipe citing the Bitcoin Wiki.
Check passes with `ok`. Answer: Bitcoin's fourth halving happened in **2024** (block 840,000, 2024-04-20 UTC), written to `artifacts/answer.json` as a `panel` recipe citing the Bitcoin wiki.
check-answer.mjs prints `ok`. The answer: Bitcoin's fourth halving happened in **2024** (block 840,000, 2024-04-20 UTC), written to `artifacts/answer.json` as a `panel` recipe citing the Bitcoin wiki's Controlled Supply page.
I wrote `artifacts/answer.json` with the answer 2024 (a `uint256`, given as the string "2024"). `check-answer.mjs` prints `ok` for it. I did not read a source in this run. The answer comes from my prior knowledge that Bitcoin's fourth halving was at block 840000 on 2024-04-20 UTC, and the `notes` field says so. I have not fetched any page to confirm it. The `source` in the recipe is the Bitcoin wiki page https://en.bitcoin.it/wiki/Controlled_supply. That is where the fact can be checked, but I did not open it. The recipe kind is `panel`, as the request's `"evidence": "panel"` requires. No RPC calls were made.
Check passes. `artifacts/answer.json` answers 2024 (Bitcoin's fourth halving, block 840000, 2024-04-20) as a `panel` recipe citing the Bitcoin Wiki's Controlled Supply page.
I wrote `artifacts/answer.json` with the answer **2024**, and `check-answer.mjs` prints `ok` for it. Bitcoin's fourth halving was at block 840,000, mined on 20 April 2024 UTC. I took that from what I already know, not from a page I read in this run, and the `notes` field says so. The recipe is a `panel` recipe citing `https://en.bitcoin.it/wiki/Halving` as the source, but I never opened that page. No RPC was used, since the question is about Bitcoin history and the pinned Ethereum window only timestamps it. The window and request id are copied from `.imd/reads/oracle.json`. The one definition I stated is that the answer is the four-digit UTC calendar year of the halving.
Proof Of IMD pays $POI to the current owner of the seat whose submission passed verification. The owner is the ERC-721 holder reported by GET /seats/:tokenId.