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 0x19fca615be1726166aa0ef1d5097a85710785f7dfcdf8e0b83c91ad57585c1c5. Chain 2 (Bitcoin): anchored in block 953754 (2026-06-15T06:45:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/adc7d89a-53d3-4eb3-be6f-8cb34cfb9933.json and https://artists.proofprofile.net/proofs/artist/adc7d89a-53d3-4eb3-be6f-8cb34cfb9933.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x4bf08e639f8bc8f784ef4e73193129243ee41edbe89d72f73c1eb997966a042c. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QM6DC1736353.
Popurri Merequetengues (El Costeño / Acelera / Cintura y Cadera / Boom Boom) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d658e065990d5232e950995d5f9e6fff2aaf7da3340d0a90441f894563fcc9d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QM6DC2099444.
Asi Suena / Negrito Puchunco / A Todos Les Gusta La Negra - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b62eac88bb4899b1c7c5aee0ff31df6a997a6480d0e8428510c893794ec641. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QM6DC2099445.
Aunque Me Duela Perderte / El Mandilon - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01635b2abfd03e606e7c29efdb34366604f4fee8915db5a0975506182a3c46e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T08:41:52Z), 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/QM6DC2099446.
Ramito De Violetas / Cuando Volveras - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76370a330716e7734113006a4a158ec91260d61a1670b77533feb55dc84cfbbe. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QM6DC2099448.
Elfego Cisneros / El Amigo De Guerrero - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bf4120e0f3e8ed2480b8fab2713179e2902023600c96d0e342671d5b5b6926. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QM6DC2099451.
Popurri Exitos (Ironia / Amor Añejo / Eres Mi Amor / Caballo Viejo) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7e9190efaafa2e94992f50e952d0fa839d0e1dffc95a2db0153b200463d8f2. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QM6DC2099452.