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 0xf23eeec7cf3e27ffdfbbdcb358cb44f92cb13b8f3d5f1cac6c27f3d0269980b3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40be0344-484b-4f9d-b823-9d49560f84cb.json and https://artists.proofprofile.net/proofs/artist/40be0344-484b-4f9d-b823-9d49560f84cb.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 0x461ced2ed12a7d822720009747e0a7def36b571d71ed85d518ed31ea3eda7de8. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/ARF101600528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e80aa34045b0778bada5326f1de70c038de30b6bc31c792c4cdbea640b43a94. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ARF101800250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd730cf634940e3221c5e652d9280d030bdffa5676d6140f84044c6be65e1b2. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:47:25Z), 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/ARF101800246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e6b2c729b486ba6b5bbb8c8fe0e2b27345c9954a09945d8a0813afc0a7c53e. 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/ARF101800357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea71eae47f00e31cffe4e8d59c1e4ca36094f0c9de0092f7d2f642792d5917a. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:22:18Z), 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/ARF102100264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3e475a69045c42a4fb988db9736d3b41933d0d2f99cc96f8d67ea7ec289946. Chain 2 (Bitcoin): anchored in block 957822 (2026-07-13T08:02:12Z), 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/ARF102100224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4109dad5dccfe15c18a175b5e1c8b5065583028e845a30d5335f243b3a9adc02. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:30:19Z), 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/ARF102100263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c33b3fe56c860420dfddbe47d7b6838324d8059e72e8a4696c4088dc968ec25. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ARF102100267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5e5e51d6c83241993e622db06cfc64e271b55c00987691410b83b9d822bf0f. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/ARF102300339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8964d5a96d996f8132578bd2edb3758cf1d2ab73267124010153fde907f1c6. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/ARF102400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f851ebe3315f4212f3132677345017473a885defa8dd5263e48559538cbf06a. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/ARF102200152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f851ebe3315f4212f3132677345017473a885defa8dd5263e48559538cbf06a. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/ARF102200152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127661b00197891f61f8f5e02374486f836bcfc352aa74318c07de15084abe13. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/ARF102200153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76862dc0bd392c23cc8f6a9268ef290bf69efec534d3b43b29c6c7ee1965765. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/ARF102200155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d153128399ee285244433d050668c4108d5a2a8502611a4e41867cfbfcdea2b. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:40:26Z), 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/ARF102200154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf919d0e0a7510c26907f0dc6fd1bf7777987c456dc4592957e88308bd5a419c5. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:45:15Z), 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/ARF102200156.
Sinfónico (En Vivo en el Teatro Coliseo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731d4270f15477b6fa4f8c7f530ef9b9c3d543c75f2e0eccaecd10e5b7deba23. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:32:03Z), 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/ARF102500252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa839f97e3a38c8e6f71bb72a6868d8d7f369d8837750358d714e85a5a3664f. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/ARF102500326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd430c8047fae995c9d034da8e0c93eac3ef2bd6790d5bb736dfacaf293f6c0b2. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ARF102500337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb80c74c78864083940b9114cab62861b376806e6b6e23a78bc1ce3343620e74. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/ARF102400279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1194cfd7d23c20eba64bd0d0d845d9d17e6a861f063d1704ac4fcf6c71feb54. 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/ARF102500338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f8ca0be049590614e46e325025e961efe49404ebde56f9b166c5c7208f398a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ARF102300308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5253c8c4659e22c19f233c204de52ee6d300d6673c4c52d1bb1d1642ae031c9f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ARF102500340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff5131ad2de992d47570d4027bc1b24d1e95845b122b0d19d4beb3de1989232. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T05:55:09Z), 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/ARF102500341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c293bac3a3daa8592a7894fa8ba885b911ceecfb95d94fae5438332046c726. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ARF102500342.