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 0xa0e479f170874f6c2767bcd74025651bfa53de837aa410452b9f7df0ad46245a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c67a6dcf-d271-4db2-ba7d-35da31fe075d.json and https://artists.proofprofile.net/proofs/artist/c67a6dcf-d271-4db2-ba7d-35da31fe075d.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 0x64026a9d90c58808dad0408348ffb46ceb2a654f4de53cf41dc69e8852c99b37. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/FR2X41560757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e3da98c5b7accff77b13cdc984cb3888dbc566a827685e08cf4f17e51023e92. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/FR59R1601623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e3964582458c251ab69cf5be75e143a1a1ed3e5604a82e44a7f5f43a0b3a3a. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T12:02:18Z), 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/FR59R1601626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5baf09e58387775652a59e9d778e993b3e8694b8270045bd3bd39b4a9de9b08c. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:09:02Z), 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/FR10S1704717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce507bc1f74d2cf953af8c2445f2f704d93f0735de38a7774981512a592fcb1d. 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/FR59R1764047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33317075e8bfc1291cec5f89e7478b1b5d413851fa810acd21f8936fd3cb22ff. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/FR59R1764048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c6510cb0fefae370a95238919092ff4f3ae4329db298dead44058332af77ba. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR59R1764049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f17d0dafb885cd9fe0372c66fd816d0f8c59e4078cb742a93d25bb5b6da66a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR59R1764053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35449e9e7f5942c1c5e177a55c2c1188f93255e12057d54105dec4d801761e1c. 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/FR59R1764056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5b4b7783149847774d276a52ce4df7dcc6ece08d1c598937cd09d19080678f. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:35:17Z), 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/CA5KR1718504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527ca989755cb8e035bba5d69eac3bd3c86ab9fff18dd644633aff0836e5bddd. 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/GB7YL1895701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee49c6337fbfd0398a054bfffe218bf9f2bcfbcf33ded75948f10a07a6c1d4e. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:41:10Z), 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/GB7YL1895702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5eb7a521fc2ef60815e28394b85a32c50f9b98bdfa2bf044bd018360472dee. 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/GB7YL1895704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d0f0e69a42df1106441c9236b7e53a95ccabaefbbc0f1de0cf6af17d12c5d7. 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/GB7YL1997504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a7d3e71ade7d651df1a6bc254b89c814e6fdee7ddc19875d913eefa8d41915. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:19:48Z), 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/CA5KR1957865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb725bcee2a29d9b3598f477bef93cdd00935271f2663f39696322ec86a9a3ce5. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/CA5KR1957867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd6f5a1333e03eee69bea91cf480ec05cc5808f52c92be9b62613894252ecdc. 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/CA5KR2190182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf2d4b78b4ff758b14df2d16cff4797d9c75201c15c5b4d0ca510942b0399dc. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AUK3B2400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa80ad879088f34ee76f7f4f26e262dd2a441bab6b3e8b58b1f449e05b4afeb. 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/CA5KR2514444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa165c79b5af4ee1cbaf62068255ac235842a54271d618d61f076ac5384f834. 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/CA5KR2514445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352ba7deabb1a091997209ba281690cbe52d3ce7d594e3430579488356b14f15. 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/CA5KR2514446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffec82cc0e5b7357794131801fdae3b01abb7f2d34ee098993c1687c4a353ae6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/CA5KR2514449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9550abe1eb804b0dcfae603c6cd7127acb31323d820b108dd5a2a75d2fa456. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/CA5KR2514450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29224ab6454be26c82770991080c156a920f6d621df8680cc954f3af5ec26e36. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/CA5KR2514451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e602e1be3030d1130a27bb7a8102547cea0e34017fa739a3cf2dbdf34c96bbb. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/CA5KR2514452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49667e27e3ef241db094439a1978471acdeb8ef0af16f22ff7aeaab7a666c50. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/CA5KR2514453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad9b80a3e0cefb0c622089529f84538a5b7448457e4a2b4b07de0d12323a436. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/CA5KR2514455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc110b94f4f2fda949d95788d15a68fddd3750def2246f4944d3b40c044ee6f97. 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/CA5KR2514456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09dd7a5bb360392ac2bcdb4fffbb4f9cf675bc5f9154523892eaa74849da7fb2. 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/CA5KR2514458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0dff9250effea5d2212746cba8bd79bc730ea96e4ead5d620447adfa11f390. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/CA5KR2514459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d5dde9d2e2dc4c209452326e811974df438f0dfe7bd7bf8295d162006c02fa6. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/CA5KR2514460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f85b11ff7f920354590abe74b551c7d5e29089a97174cde98fd19c354c9ef40. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/CA5KR2514461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99b3e5e1d7ec12fd915d8b612a269d834f650da1cbe4c1b928bcb4a1456bf7c. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/CA5KR2514462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb42fbf312ece0f1133fa4368c6225b60d962cc377e8696384ab1124b572cde75. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/CA5KR2514463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93881a39b568552095d7f07d0fb4b823db1f956c87c050ae17fd9af2da4e366e. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/CA5KR2514464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530a3e86aff1a314f92e7063997f7bb94a168dc7794e08e95afccd833abb5b75. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/CA5KR2514466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69f3e49148a8db249099a1663ac84e2dea5f3606ab6f69432fa957662d0db1e. 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/CA5KR2514467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc47b222e5d3824b4808da2974286f5240746b29d4b129a4e451a4c2d7d403f. 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/CA5KR2514469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2d83d7f45f8eebd5a4b31d9607074e0bcba9aa77a77b2bb1f24decc447f95a. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/CA5KR2514470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fa809e4676cce78dbbea0a33a065c51bfb66991060e5cab4033a0575520be4. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/CA5KR2514471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd16b83c2393599b6f543494cfa66e793c4f9e0cbc242fa78c62b784ae22f62. 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/CA5KR0008198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8fda5b4e75fdeda77fa84485f90138748d5fff311c072b3be9f1c234433c360. 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/UK7H21500145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e453f8f57e197d01e5793287e702929684da17325cfae6cfbd56258cd10e1ef. 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/CA5KR1716293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d22f8ca2b4ed48641ac35464fac0c700f75a6f6874b4e99806afa439c93d7f3. 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/FR2X41652243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17f39ca07da9b247ab0d0707ecaeeb9c4fd452c98884aae9170c09a92306718. 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/FR2X41652246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e83976f138fa3d1a6bff322fe1af9aa3cf27a973567dc46223b0092e4048543. 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/CA5KR1835612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9968b9eaf0d4fdbb96fa9b5952926ec872944f25d54e5e9772f6886005124c9. 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/NLRD51831630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d77f2e5245f8916dd22d6ce4d3ecfc7fc3724cb8c23ddb48bd2133ddc2cdfa. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/UK7H21500165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833ef45fe5fcc9f4327d313ebfbe30c498b51947055a4a60e7bde2a1ce9f9bee. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR10S1629888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf2d4b78b4ff758b14df2d16cff4797d9c75201c15c5b4d0ca510942b0399dc. 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/AUK3B2400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a876a24f8224248f31f385401f94c1d6b024cfbba8cb20631d14a29c13858d. 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/FR2X41530237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd049e6ca8fd4ac5da96dcda27a06fa09cc557b9fbc6c739a65b484bc8f3f4044. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/CA5KR2183670.
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 0x47983b3e75a897a3fb24cd581bdbfe018989b7e74964e6662c540508bcd21cdc. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/CA5KR1569872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1c3ac1c289e61489959545d7ba93d91bf506cc6694d14c12cc803dcddf377d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CA6D21800171.