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 0xf6b75535b0d385cfbc597fe5b91647f3a09d5df51fc5c25cb5e69f63f6b8927c. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2527d15-bae0-4d77-b4c5-303a13da87f8.json and https://artists.proofprofile.net/proofs/artist/e2527d15-bae0-4d77-b4c5-303a13da87f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Quien Entienda Como Es el Amor Que Me Llame
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 0xbb1f974e95303dd379fc137734e5e437fd964fd988e12a4bca3ce5298ac7e941. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USL4Q1996294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e553e77ae24fb3c0a7fcc9fe50df61ab7e811eeaca0dd9e5a493fa6371154bf. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:35:30Z), 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/USL4Q1996322.
Los Éxitos de Lenin Pulgar y Amor y Gaita
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df3ea0c9046f67e19a7fca8acb60eb84dabb15d74cf12502f611e6adbcdbcb7. 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/USHM81831822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8fae038bf0de4b1b47eeb5dc78bc87f21eac98f35a7e6ce0ad00766d79c094. 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/USHM81831823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a49a7df5f8e7af4beb2b41b7bfe084e3ead778ca8b85d676ca1d037fd7e1a89. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USHM81831824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8ca54a3446554c427aa28ced9c2b11f4d3d54c28eedbf48be137f614667c09. 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/USHM81831825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b16088fffbf0f7988660d5663748a4bec57ced6243ec01c76f5b3d93ea75fe0. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USHM81831826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101a58a47cea16d5b1c44e8c611fbde8ba6c22db3d3605113eb6dbf2c07389ba. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USHM81831829.
Detalles del Alma (feat. Aldemar Torres)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d410d907ed9432ef35ac8f83a5100042d73eea15c6101fd1ffb4a7b5151849. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM6MZ1859330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1f29d983da2a6b50d9b42ee275396c6037ba9be662d476f13aee222ced01d3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM6MZ1859331.
Cumbo / Vivo Enamorao / El Mono / Llego la Parranda / El Avión / La Candelaria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc048d277aa6dd90c9c5fef2dbb7c1812fb68f3d88c8bd078b6437870e8bec9b4. 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/QM6MZ1859334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78da5ac390ac915dba54b9163ea42d8ebd8c194803d7128076d2afed21734c61. 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/QM6MZ1859336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0def7caccfacc3c4d5227cf580f6d9269a0c838c8d44106f2afe2b001c0fe621. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM6MZ1859337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e9809bc4fa92aeacede44df6327c98121bba026b65a363482a6271dde4168e. 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/QZTVM2472510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143355abf0da724e8f5b86b5614e4154dc80c01212e29fc2159665ac4f9d63e1. 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/QM6MZ1865003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ee36088b9c7eb5e56820ce3a59ee0747b3318ce23185666d15809b13a2db9c9. 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/QM6MZ1865001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d8a8c9c65abda216e380a905ba3b0772dba5dbec3aade3defc46268d8fae5e. 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/QM6MZ1864999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0c42d80fa6421371117052536bea055c5daef76c7ee3ff7814fba176df6bde. 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/QM6MZ1864998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a8b9bc21352d093bb61adb0e71c987818f75ec2ad926a3635eaad4be9210e4. 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/QZW9K2448925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b50f1c727e16a2f37f17ce14de8f0de4fba4faf902f21193de37d50f17ec92. 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/QM6MZ1899186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5c7ffa9588ac2c2b7de79ad135c17c1c225bd18036734aef42e021e03e3482. 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/QM6MZ1899189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa50bc984f193384e76113e12cae8ea78cd355dccabb94e180401bd1dfb30303. 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/QM6MZ1898854.