The Nathaniel Dett Chorale is a Canadian choral group that specializes in Afrocentric music of all styles including classical, spirituals, gospel, jazz, folk, and blues." Classical concert meets liter
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 0x83e26c4e4a9b2dc326cd5bf96ef5f24aa95a951393c4c8dcec1a93d87940041e. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8eb580be-d2e9-479f-8c59-a1dae2f96f04.json and https://artists.proofprofile.net/proofs/artist/8eb580be-d2e9-479f-8c59-a1dae2f96f04.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).