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 0xe3a2e43b3ed09601bbe260b937a574d3e3cff97894dbd6d15229a6b6ebd066db. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a476b895-0480-4bbf-ac24-6aa920600433.json and https://artists.proofprofile.net/proofs/artist/a476b895-0480-4bbf-ac24-6aa920600433.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Las Chicas de La Cruz Roja (Remasterizado 2022)
Vintage Pop No. 178 - EP: Las Chicas De La Cruz Roja
Ana Maria Parra, Vol. 1 (1958 - 1961 Remastered)