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 0x2b6b6129ee22ad81867a5dfbebd68f88eb8335f42c4894b3a827a9f51cfe106f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a98c5f67-d2f2-4b47-8a2f-7c3bdfe661be.json and https://artists.proofprofile.net/proofs/artist/a98c5f67-d2f2-4b47-8a2f-7c3bdfe661be.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 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 0xd4d630f0d74afee7d9c89e0685779efa567e8568a498eff04b9249f9b55a6d97. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/USHM92067407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0720dcf4da9498982bd90ed7dd0faac5a248796b04a2879d5da72529a3397774. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/USDY42103568.
Tu Gloria / Sólo de Jesús la Sangre (En Vivo)
Tu Gloria / Sólo de Jesús la Sangre - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be6d47feb0ee59793a9333253f2768416eb2183e484f311f6df85684af89a1b. Chain 2 (Bitcoin): anchored in block 958647 (2026-07-19T02:36:14Z), 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/USCGJ2261719.
Espontáneo (Aquí Te Esperare / Abba / Digno / Tiempo Contigo) [En Vivo]
Solo Cristo / Hermoso / Somos Tus Hijos (En Vivo)
Solo Cristo / Hermoso / Somos Tus Hijos - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a9a19ec463f3283d8748ee8a78f6a7724f79cead3b4a78c7ca7eb58721ca57. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USHM92271990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aee2b3478d1c216edebdac98934d91adf949b7b8d9e76fde4689510bbb48905. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USL4Q2203036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bb56cfa8b61d2fa680f9268fec416b98a08029bfdda330ec98302bed431ac5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USCGH2327584.
Descansar / Descanso / Quiero Amarte Cristo (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6657092a1be48179abdc704e067b15399deaa5e551da0f5d57d4884d0363601. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USHM82370471.
Que Ruja El León / ¿Quien Podrá? / El Fuego De Tus Ojos (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76b71b86993179350fdf0f57c68a90a052341aa0263085cc398e893a97ed960. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/USDY42497329.
El Fuego Nunca Duerme / Padre Nuestro / Nada Más (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9062be09814e006ce2625e0068dfe469762b6075df3414e920d918ffbc2d773. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USHM92497025.
La Sangre De Jesús (The Blood) [En Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124e8439f35bd450743d364fa5c1b709325da31f584a21cb9bf8e3e296f61f43. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZZ8A2580967.