Bergen Big Band (BBB) is a Norwegian big band established 1991 as a continuation of Knut Kristiansen's Bergen Band. BBB is known from cooperations with musicians like Phil Woods, Paquito D'Rivera, Joe
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 0xa310934509cab7dc79cd40f14f212bd4b3f5a4581f4e1bb3ac730e1599ee4071. 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/b29ce677-ab17-4458-b503-e2fe87f4d378.json and https://artists.proofprofile.net/proofs/artist/b29ce677-ab17-4458-b503-e2fe87f4d378.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).