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 0x9184643da26e2f1ab410d0654a6e48ed5c334d5e38b7dd7a68ebfba6f87be9d1. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de6c7638-90ec-46c8-bb2b-ca0b8a65301b.json and https://artists.proofprofile.net/proofs/artist/de6c7638-90ec-46c8-bb2b-ca0b8a65301b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Tribute to The Shadows, Hank B. Marvin Style, and other Gold Oldies
Listen with your heart - Beautiful songs with love
Don't cry for me Argentina (Instrumental)