Grimfist is a Norwegian blackened death metal band from Oslo. Founded in October 2001, they are currently signed to Candlelight Records, with whom they have released two albums. History The band's de
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245c47052c59db616284e19835e30654a0f3ee58e85b4885270c61ebdd68de0d. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/faec71fb-b85e-40fd-89b6-b7cf4efbe10d.json and https://artists.proofprofile.net/proofs/artist/faec71fb-b85e-40fd-89b6-b7cf4efbe10d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).