The Birdwatchers were an American garage rock and pop band, active in the 1960s in the Tampa, Florida area. The band dabbled with an Everly Brothers sound in their early career (1964), releasing a cov
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 0xb7d3dac518eb06995ef657f4c04e537142420aebaecce3e5f79dc4a25ea5464e. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d85dcb2-60ac-44c1-8384-7a36b9e649cc.json and https://artists.proofprofile.net/proofs/artist/9d85dcb2-60ac-44c1-8384-7a36b9e649cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).