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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65a5cb76fa029e9e7bcec9c20f76861006b3684a57f7c8fd401f0ee4d2a20b1. Chain 2 (Bitcoin): anchored in block 953933 (2026-06-16T11:13:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/204e420b-9f04-4dea-8951-f6eadff3278c.json and https://artists.proofprofile.net/proofs/artist/204e420b-9f04-4dea-8951-f6eadff3278c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Traditional Christmas Instrumentals (String Orchestra Versions)
Traditional Christmas Instrumentals (Sleigh Bells Versions)
Traditional Christmas Instrumentals (Harp Versions)
Traditional Christmas Instrumentals (Guitar Versions)
Traditional Christmas Instrumentals (Brass Versions)
Traditional Christmas Instrumentals (Marimba Versions)