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 0x291ca3923d7d3e95fe9ad88c7adbd8b5290ab84d695eb4afea5435e80bb2ab61. 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/80a2f923-5319-4eea-93b8-452d45d6630d.json and https://artists.proofprofile.net/proofs/artist/80a2f923-5319-4eea-93b8-452d45d6630d.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 0x50a34cdcd3d14c410b0f2ebba5d0d798c25a9900ab3f1be3a06ac81b320d823d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARG991025203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d14b06b14a6e04be9d1f65cccbbb76823f31f957e2ef0233c4ba31190322f6e. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/ARG991025231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ebc7050421ae3480a369952ddfebecfd1831197b9529afceaac8e96d554084. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ARG991025233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31edaec94c53535f871246b91493c53c774129194d60f3323edc9775fe68eaa1. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/ARG991025235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31e643563e6b3107713f70ca59b4664517e2f9badbfc4bc8f79d1236eff9bd1. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/ARG991025267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165d76b50831b6b80bcc55ab340cf858a1b2c8267b1c0ad41dce50c65479e519. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARG991025247.
Debes Volver (La Luz de Tu Mirar) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf0474ca2c1a6a8ab9a4eddf6d0e69d4ebe95f448529b60cdb675b81585057d. 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/ARG991025249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf66cdc458795ed814692acf92048a6413a5d17a3e582457839af36f707857c7. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/ARG991025464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb977dc85db0689e8ec5661d629cbb9d4bab1c20832c3b83ac128e6ab3635499. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/ARG991025465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd82f90b9484a2aa0530688630851a9c65ca16b4b44f8f2e1058ed9f6a57aab7. 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/ARG991026940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572ef26b29e264f92143a99f3f0eb3dcbd6f89ea76e6db4b825b3a92d37a0168. 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/ARG991032744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa5c9923f81417fc85a0424b4df2204b731691504c81e8d07b5e523541b5b99d. 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/ARG991032917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8959c2de46d99b4a2b09a6d4bce5047a8adee9cf6a2247de30c38ea0d6896e8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ARG991035503.
Mix 1 Enganchado: 5 Minutos / Te Sorprenderas /Hojita Seca / Amor amor Debes Volver
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eab13f9fa129ea87e23410ce11f07dcab2e46e459899508db48a3bdffaf6172. 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/ARG992044392.
Cinco Minutos / Dios Me Libre / Osito Dormilon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b194f2bf088e4987b4e6fbf7b53b914c6a0c34168a1691100dde347599d0cf. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARG991026151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fff016728a7bde1e9d4e13f21f19205e3167cd02a4324a67b9042f84d7392b2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ARG991044104.