The Count Basie Orchestra is a 16- to 18-piece big band, one of the most prominent jazz performing groups of the swing era, founded by Count Basie in 1935 and recording regularly from 1936. Despite a
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 0x2d55fad9f8a4b768da7055846a735693bba124e1bf66945714ec1739cd5698c2. 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/87e0660a-87ef-4538-9181-15e8ec0e04c3.json and https://artists.proofprofile.net/proofs/artist/87e0660a-87ef-4538-9181-15e8ec0e04c3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).