Nuuk Posse is a hip hop group from Greenland. The group, whose members are Inuit, formed in 1985 under a different name, finally taking the name Nuuk Posse in 1991. Nuuk Posse is multilingual, rappi
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 0x7c939684dbd5e8250f59e9f9ce73758c1be3a3a84b00597e0a989ab90c755dac. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2968d19-fd62-48c2-a72f-a708f97fa461.json and https://artists.proofprofile.net/proofs/artist/b2968d19-fd62-48c2-a72f-a708f97fa461.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).