Orquesta Sinfonica Nacional de Costa Rica
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 0xfc925c76f6df37e6a4625ce3a2ce57098b9c0f20e063203f7adb8fe67f24281b. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8eb0593-2377-487a-91d5-6120358c8e3f.json and https://artists.proofprofile.net/proofs/artist/a8eb0593-2377-487a-91d5-6120358c8e3f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Música de Compositores Costarricenses, Vol. 2