"Peggy Gordon" is a folk song that has become popular in many English-speaking countries.Roud Index History In the 1820s and early 1830s, a song called "Peggy Gordon" was published on American song-s
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 0x107968ab7e5c246145c07bc2e7d317889feaf6b53dc822bb2be6420871bc0fc8. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/57cea180-fe94-4062-a322-c9b462f330ea.json and https://artists.proofprofile.net/proofs/artist/57cea180-fe94-4062-a322-c9b462f330ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).