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 0x85351d65b7822bfaf96a58bc29a80c95d36fc9e3d83d2cbad04ef957a9244bc1. 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/ad6c2d89-cc27-481e-9b2d-6dcea76c3fd1.json and https://artists.proofprofile.net/proofs/artist/ad6c2d89-cc27-481e-9b2d-6dcea76c3fd1.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 0xe0b3b2686dae11d010ad75fa7d16e6d3038a23d36dd59cd253b52b0e10553f7f. 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/COSO11700423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ccdf07bfc7ad968a69ec5b41a77f10d7188be01e1b71bb669202a68bdd4251. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/COB010002001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a8e7d615227fc5a872b6225aacdfde941c9e56a20b4abb3b1512b5fcfe053e. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/COB010002002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11dc8d3813e881ddef39adaca8918058caa6cdf39694e76869f6f450a0c3eaf. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/COB010002003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927e077636b3440686e4919509d039bb3d8fda2acfef11d39d99f50cf39be3b2. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/COB010002004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2830935748fb516d2597afbb1d5ddbd38257322a4b74ea8f413f7b35b3e12d5. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/COB010002005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4465bedfda44fb3d5bdc21e5cffdf641727a47161fbb47c892988a3c1aab8b78. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/COB010002006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791d004006ea782825c1d8ff0036abce859405a9937c53a64670c407b7ace7ea. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/COB010002008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe69bf2f8fe29795f508f97e07ac1dadd162a3bf5396fd8fb59e93d2d6be112. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/COB010002009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d31c790da7b98e1f3af5ca17cbbcf0c3a4f0cf5c9d0245558068d76bda3731. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/COB010002010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ccd892cdda1746dd6eeb584bb7d87983e089b61c1d1fa615c270b6811589a1. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/COB010002012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454261d7f43f272ac94fa81a23740c33022c9ee2e098bb445eb6b843c12ba76d. 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/COB010002014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17bc32b918eaaeda81433a0409b0fd45534b26fbc70ea79dff1d6def412e9a06. 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/COB010002015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1af4225304b6ea585317428d5ca56c9af33adf865c09db867be210e7858b64c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/COB010002016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219161edb780d2165a54738048894e392d3ffa6b5cb2f6b9996f1e3be2e41cac. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/COB010002017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78788ae9b5c8ea3dfd4ea2b2c55e51b256fe013c4e84e1287e174ef1c1353631. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/COB010002018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacfc78cbb4086e50c1caf1ad525b7028f579ab286c4a4459f1d1fb6a07d7e6a2. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/COB010002019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0567a9defef0ac1b89a9f80d25870467227d407eff2daef3bcd78c600cbaddf0. 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/TCABD1261971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab22e7794028ccb2d12e73277b6635d7487e4159e2c94890b0bc92840f3897a0. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/TCABD1263760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93eef342b2515b44ad9afc5a76a70eb282ca9723399097b21be2c055833fd5cd. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/TCABD1261747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196b35df77c22cdccc05fa1c812ac0525868f9acff9fef91013685e7fbc0a06b. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/TCABD1261778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf69ded8b6ce226aaebb9129ecb4ad314b937c53e3c32d7874657ce526a8e43c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCAAU1155721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa37a2d6436a4eb6163d6503db14b22cbf96b13262eb1f90388592a7984f3cda3. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/TCAAU1155723.
Gran Aguacero de Amor (En Vivo) - LADO B
Gran Aguacero de Amor (En Vivo) - LADO A
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d39a1c9cc11c5c3ca9cafddd0f8616a2e315cd26fa3d419ce5b200131f44b6. 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/TCADQ1896643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d78595d7d1dbf80b7d2cca0a942860a21c0aae2265574c603d6afc27a9862e. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/FRX201786589.