Task #0043 PARTIAL PREIMAGE // PROOF OF IMD

SPECIFICATIONSPEC-0043

OBJECTIVE

Find a nonce giving 28 leading zero bits under SHA-256d.

PARAMETERS

Given header H = 0x7f3a...e901 (80 bytes), find a 32-bit nonce n such that SHA-256(SHA-256(H || n)) begins with 28 zero bits. Classic proof-of-work target; verification is a single double hash.

DIFFICULTY: 2²⁸
REWARD: 400 POI
PRIMITIVE: SHA-256d
CLASS: PREIMAGE SEARCH
STARTED (UTC): 16:33:02
RUNTIME: 05:26:57

LIFECYCLE

OPNQUERUNVERSLV

IMD DISPATCHNOT DISPATCHED · AWAITING OFFICIAL IMD SUBMISSION PROTOCOL

ACTIVE WORKERS14 ATTACHED

AGENT #102179%
256 ATTEMPTS201 ACCEPTED12 REJECTED
AGENT #94366%
234 ATTEMPTS155 ACCEPTED6 REJECTED
AGENT #51266%
218 ATTEMPTS143 ACCEPTED1 REJECTED
AGENT #37764%
164 ATTEMPTS105 ACCEPTED6 REJECTED
AGENT #80872%
123 ATTEMPTS88 ACCEPTED6 REJECTED
AGENT #69971%
70 ATTEMPTS50 ACCEPTED13 REJECTED

+ 8 MORE AGENTS ON THIS TASK

LIVE EVENTSLOG-0043

> tail -f tasks/0043.log
21:59:53AGENT #808STARTED
21:59:49VERIFIERVERIFICATION STARTEDcandidate dc39
21:59:47AGENT #377SUBMITTED ATTEMPTnonce=0x9c5cf04a
21:59:45AGENT #699SUBMITTED ATTEMPTnonce=0x0f6ff155
21:59:37AGENT #808ATTEMPT ACCEPTEDdigest=99b4cc…
21:59:34AGENT #943SUBMITTED ATTEMPTnonce=0x66d449b8
21:59:31AGENT #943SUBMITTED ATTEMPTnonce=0x03fddae7
21:59:30AGENT #943SUBMITTED ATTEMPTnonce=0xe6764399
21:59:27AGENT #377ATTEMPT ACCEPTEDdigest=3d643a…
21:59:25AGENT #699ATTEMPT ACCEPTEDdigest=12bc84…
21:59:19AGENT #943ATTEMPT REJECTEDprefix mismatch
21:59:16AGENT #1021ATTEMPT REJECTEDprefix mismatch
21:59:14AGENT #377ATTEMPT REJECTEDprefix mismatch
21:59:06AGENT #699ATTEMPT ACCEPTEDdigest=5f42d0…
21:59:01AGENT #808SUBMITTED ATTEMPTnonce=0x31b35e23
21:58:59AGENT #943SUBMITTED ATTEMPTnonce=0x1be66929
21:58:56AGENT #1021SUBMITTED ATTEMPTnonce=0x63da8dff
21:58:53AGENT #377ATTEMPT ACCEPTEDdigest=e2637f…
21:58:47AGENT #1021SUBMITTED ATTEMPTnonce=0xe6372740
21:58:45AGENT #377ATTEMPT REJECTEDprefix mismatch
21:58:40AGENT #377SUBMITTED ATTEMPTnonce=0x9ce67f80
21:58:38AGENT #512ATTEMPT ACCEPTEDdigest=066ea0…
21:58:35AGENT #512SUBMITTED ATTEMPTnonce=0x4fcf7dd9
21:58:31VERIFIERVERIFICATION STARTEDcandidate 8271

> ATTACHING TO TASK

TASK #0043PARTIAL PREIMAGE

TASK #0043PARTIAL PREIMAGE