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 0x299dc4327a323c55f9228db70021e5ca4509adce01424422b487de4bdb46e4a6. 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/943c1f85-9db0-4b32-a7bf-823049e92069.json and https://artists.proofprofile.net/proofs/artist/943c1f85-9db0-4b32-a7bf-823049e92069.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 0xc3ea5f4cfa801857ace9b6d6f86a1f8fb1c683aaf7a1a76c69c98ebc1d8bfff8. 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/ES64E2318873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c82a956dfc2f682a6113e7319641ca79da8517ae53b409e4be661f662c7969. 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/ES64E2307937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29580c45a85823980f3bc5553436bde3f4cc187a12b1911711ea318a30f55d8c. 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/ES64E2304932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3614915901ba878c55aae99cd349f6af809a8b2dba8f934061ab5fa47e6d3b46. 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/ES64E2303369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a81484769f94c6570e622ed4ed60aa08f86755068a9636d4a32a0aad7e2933e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES64E2303749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0189c323740b3a7fe68fac9d7449cbd49505ed19ece7b45acbefcef791a2bcf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES64E2301896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae90672bb511e1c0f8045795241f44a4406c39152783bebb9507ae19fb0013f. 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/ES64E2206203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fea9f80449c6a391f473baf1ac1a08f18c9738ea9f1d51afe5acf823f3fdd9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES64E2205905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30491a646a721bed0b66d2482b8fdad2156056d0d434e9c6f7a16b4dea6f8e33. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES64E2205498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212183b679d9c8ef525a753c85f7e2fed3f9a2088e84d4321cf1ffa39d00c499. 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/ES64E2205206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39041b1c49583d81c7c194039d5e53c3b19f5eecf22ee40e071139c1fdf3eb2a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES64E2203499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283e22d2552e359e6e266fd50fae470cbeadf5e5516302fc4c7de187842440fb. 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/ES64E2203277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e8b740e1afefffcec909bd6c26feb0fefc5f0c654848c4e69687dc88862317. 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/ES64E2201664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57163096843ca1c23bbd5fa922e6fbcaaded8ba5a1a94a4020727a2e318bfe31. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMFME2119146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18d5ad69590ed1eabcc74d94805e75bfc5cf04195446928b5d234eba58e367b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES71G2111509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc600766ea844b2864b0e032be2832ea018adb288eaa44b27aaa0ca109cf5ae7. 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/ES64E2406816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36dfcafcd9b5a01df3fe54be40132c3a7d7071aa374b1ca1d4f102b27c0a3877. 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/ES64E2496254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xface80cfa65b0e97774607b504b0f4d18b180b25dbf6c63940c000ee2c7b2101. 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/ES71G2044736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfecd08ec7190aab39e1f46c6e490d39ac9dbd7edee4c48f179de52c0c59da6e8. 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/ES71G2058891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d96d3d8d206f084848d72b6801b422eb6ac98de718f539e22fec57886047306. 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/ES71G2108031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18d5ad69590ed1eabcc74d94805e75bfc5cf04195446928b5d234eba58e367b. 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/ES71G2111509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10219c81ccabbb9be99fe115a255f9d7ff98968c01f4747a258a9ad48b9bd860. 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/ES71G2121322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d63179cbc20c463a24814347bddb13208b02d031fff22d6d2ee4c38a0b1a5f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES71G2126591.
La Voz 2020 - Asaltos 3 (En Directo En La Voz / 2020)
Hotel California (Versión Reggae) - En Directo En La Voz / 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c8ce19dad72052f60e7ea7bb923d5cf90bee1a12d44f9acca3e4300b986a50. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES5702002336.
¿Dónde Está La Vida? - En Directo En La Voz / 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bea28506bf9f69abc633464ad16f7c7185b60ab852501710d61c1114c63c99b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T17:01:35Z), 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/ES5702002337.
Lay Me Down - En Directo En La Voz / 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24f40d1a96d1a3aee9c1c37d483dccdc1c9c5db2dedf7086612a6257cede90f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES5702002338.
Ya No Quiero Ser - En Directo En La Voz / 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b83ac0e35727bed7479193cd00faa26ca64d80354885e21d00569cc9433eb9. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/ES5702002339.
Can´t Get Enough Of Your Love Baby - En Directo En La Voz / 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf08a5972d597549758448591b34dbd784d2e91331406f46957ed6410ecaad80. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES5702002340.
Garganta De Arena (Versión Manu Guix) - En Directo En La Voz / 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac37492d3e4d0b7fd3191d520a8676e891004034ff7fc6dfda612b2fcde56d26. 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/ES5702002341.
El Lado Oscuro - En Directo En La Voz / 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e1d2dc6cc94e705b6fc4c7587d23d2bcebfec3c3e51b6287d34c5590d2e079. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:51:32Z), 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/ES5702002342.
Mi Historia Entre Tus Dedos - En Directo En La Voz / 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6bb254caa0c3a1b0a1fd2aed9de8da31243f1b8f8d0868706715fed7f8fc51. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES5702002382.
Mediterráneo - En Directo En La Voz / 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c9d845717cd4a788cc9b2ec57735ebc4164cb0857c014e5cce4b1f2a3deed1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ES5702002348.
Aire De Molino - En Directo En La Voz / 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde46581e81a546f34ef8a8b92b6eb5d4cb30cb5751256cbb42099d2e3e0718b. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/ES5702002349.
Se Dejaba Llevar Por Ti - En Directo En La Voz / 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a4288e0b9c23e064366b82e121b71b0bc3e08496e1358911adb062b09d7141. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES5702002350.