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 0x9c81ba688f4986f2c8c668e8e0b0c5fdfb08de964000ff94c452de5130b568a3. 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/297c1fde-b0aa-446d-8264-d2a3137fab92.json and https://artists.proofprofile.net/proofs/artist/297c1fde-b0aa-446d-8264-d2a3137fab92.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 0x3cbf00e683e64e2a1e72b0445122913a0ffb8cafd6f7090eefcdfe01c3f396ed. Chain 2 (Bitcoin): anchored in block 957539 (2026-07-11T08:09:42Z), 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/ARA820601278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a2a1137bffdd0a6c2405c434b72e402bf49515f04ddbfa909742ca1e0d0c9d. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/ARA820601285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39911bd09844b4aa95eeb5dfd7a8c49a4d0c207714592dc542dcc068dd45217c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ARA820601286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1442964d4fc5eb620c86bfffb92ff5763f16400df5c628382ed944c56ea83779. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/ARA820601287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61cc5cb94e52f067e645509df5b57be3c99d6b15cc6d7533c77986ad7632101c. 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/ARA820601290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a8b788626b90931d1b9b121ff9c3ec29b2f524613f2ec465b72978691fcec8. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/PHV021010021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4853cf52125778bc2dd4def11141556ba3281c45e59308555adab111e58a8232. 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/ARA820900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8f896db47c60071de53d057727683cd5c8298ed50b433b5b9f138e2714aaf2. 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/ARA820601276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446213728f9e3da999270cd528cd962ebe8a4a4ca5b24723d95626425f0e5563. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ARA820900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399cbcbd5744557e744d49b7b05fba7dc1ca3d3660240d6ef89616e76a19ae3b. 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/ARA820900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b7a69ae8c76f3f7632fa47e4ee84e391c9f0ec54c1c9a875731a168b555f56. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/ARA820900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787c99ee9821d030f17382384486825ffd4bdf0b5d69bf6c6261bf22fefbd9ac. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ARA820601270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdffd5d27fad84417d47425d99cae0064e18de09052d8f1418540ca3df6f47e51. 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/ARA820601275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8f896db47c60071de53d057727683cd5c8298ed50b433b5b9f138e2714aaf2. 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/ARA820601276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554d73a5ca439145ec262acb98478dc75beea9ef4d434d2324c7efb078e1d77c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/ARA820601279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2624dcc21540ceae6553ca6cd8f4fdac0670c0406d53bbc47a0be7850f0f1405. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/ARA820601283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39911bd09844b4aa95eeb5dfd7a8c49a4d0c207714592dc542dcc068dd45217c. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/ARA820601286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d852828632a55a27619f3d45d9b37fb5aa9bc3d0d913fca3bc8b4666fc49c10. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/ARA820900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c7490eca0c3309d9ab074a4156b82628cdf7ea8621825efd435af2e0674363. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/ARA820900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1736c9e232b35301a79bb83c81ce1dcfaa48463dfa508d7e5a510eec043025fb. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/ARA820900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fba95a65d82c26f70e8312c83eb28c3e903b22e56184f410f3fa49d5ab73f0. 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/ARA820900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787c99ee9821d030f17382384486825ffd4bdf0b5d69bf6c6261bf22fefbd9ac. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/ARA820601270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3993134e9a8699b8286abced64434189f8e742ad9ba6ed0c6431bc2164b076. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/ARA820601273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb298de15396c96dbfa4ce33b80cca0c0d610d62cd41076ca2e2e9bfa239f07af. 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/ARA820601274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8f896db47c60071de53d057727683cd5c8298ed50b433b5b9f138e2714aaf2. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/ARA820601276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554d73a5ca439145ec262acb98478dc75beea9ef4d434d2324c7efb078e1d77c. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/ARA820601279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61cc5cb94e52f067e645509df5b57be3c99d6b15cc6d7533c77986ad7632101c. 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/ARA820601290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446213728f9e3da999270cd528cd962ebe8a4a4ca5b24723d95626425f0e5563. 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/ARA820900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34f497c7544d82dad24f329bc0451a5a620d3f79ac8c9242ef1a2f4a4f6eb82. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/ARA820900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5affbd8fea110b2058412f1efd732f67681515a161808524c9b838c4f06beb. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/ARA820900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c7490eca0c3309d9ab074a4156b82628cdf7ea8621825efd435af2e0674363. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/ARA820900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e7eeccbfec57d6de45ae8b822c6773b3b37f1d6b4a19a4d9f6ced7143a7b97. 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/ARA820900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399cbcbd5744557e744d49b7b05fba7dc1ca3d3660240d6ef89616e76a19ae3b. 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/ARA820900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4d85ace2dd0cc87420bd2266b3951b06ba0a53e424765ab4457eefe223e242. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/ARA820900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59d702ff9ff35e3e8c2b69965e80cfcf57d3d137f1aaf0c3147ee2a91800336. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/ARA820900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc617c17208f13e5d4e772d17e69347fdf7823336b0e32f55d79c958e94a05719. 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/ARA820900023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf571041b58bae72562db23f04ddc411d760ee1a9980c197fe7572bb91e370e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/ARA820900027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3310ddb366715b526615897c6e32a2f1224ff34f23f860f18dd69dbdcbb69f8f. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ARA820900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91bcad5105e84110d19d335ea15bf0650e3f0ead4afa15d41d250422fff33be4. 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/ARA820900031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265cb78b88284a07e276aba05e0b97c39e3e9091fb40b51f51a9f04c51efab2a. 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/ARA821100145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0df7b04d9d8c5b614110be60b080060c0f3c7c3e672c39ed4d1839ace69b0f7. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ARA821100151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416946f86bceb5a0379d59b2aa34a3cad09a8ceddbcda39b047cb1d34a18801c. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/ARA821100152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb473ea442925855195e0be8c405c117989318ac92315360442affed5842e3b49. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/ARA821100153.