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 0x52d0f99221be160fbe858849c7bb8acc3e6b8eb23cda1949993d009aa48897bb. Chain 2 (Bitcoin): anchored in block 953617 (2026-06-14T09:00:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1c2d5e72-7e53-4f63-95d8-873da9cd7fa4.json and https://artists.proofprofile.net/proofs/artist/1c2d5e72-7e53-4f63-95d8-873da9cd7fa4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
20 Exitos, Coleccion de Oro; Tuicha La Preparacion
Ahaarota Pe Ohovaekue: En Electrónica, Vol. 2
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8d5ef6d1f9313e3a77d962db30302a8d5bfa5549501a5892d4bd5e1c0b8d2b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PYA462200053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa526361a6189eaf102e94d760281324d66575587c397d7c33e2bb217ca79465b. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PYA462200054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86eee9c59659a3df7bf6c7df2684e8555bf52242fbc6cb33a8efa6f4886ab5e5. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:20:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PYA461700744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54173fc2bd37fa9aeea23a99f1d18b7b46e2b1cbc179f5ad2da26d9f6bcacb8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PYA461700891.