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 0x0cdc2ed72f596377b9168cf14d63cf961152ecd6f3b951e445c922ae0a1c4e98. 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/c9a41524-9196-4efc-956e-92643c0e5ca6.json and https://artists.proofprofile.net/proofs/artist/c9a41524-9196-4efc-956e-92643c0e5ca6.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 0x33c45f8913e24d0ba36508a0ef6a5f37526ceb2e1c8adc85b066661c232cf662. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), 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/QZFZ72149422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47608aea5c0043bbd8980a49afc801ff49ea17112002156eb534ccf868b2a86. 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/QZHN62144234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439364bcadcce292850105a32695119d31321d3e164bef38bed849b83b22e777. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QZK6F2115720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4565015d992588a15765e98d708088a1679a50a21f2d68aff619c368fb5c3df5. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QZNWS2104024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0294df148bca142535c6da11fa2f0d1b5d0433de9622a8b8cfc6c1fe9a6e0e. 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/QZRP42139484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea194e96fd2e017ad4b68a445235e3057d3b633428ba82e78be204ff4eb7248. 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/QM24S2200963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc679a07a8a50569e2db0e8faeabbb63ec5df8856c4cb760f49527086563e9fc7. 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/QZK6G2222638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58bd30544ca9f79e43d80b52b7b270c5b80347e43fad17eba7565cf654c0c49c. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZK6N2251026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9692006c32f308e44b0c9ee0e13368850efb2b442da017fd7f8c3e9ddaeba3f9. 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/QZMEM2232279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ee9e8a98b3602ba2838d4090c30b0a140ab0965ef9b1a51b5de2d5ea69a717. 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/QZK6J2225299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b2e40c087373de76395c99fe25e81c305d09b2fd88c5930dc33e3241847588. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/QZJ842002289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5998e20e8340e003ae88da021fa9eb5f94e00f0ccfc1a13758ea1cedb8ec119. 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/QZJ842003407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a88f12f00e97992ad21a980369f548ae1285af22911fd925ed3bdd0e66289e0. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZJ842003468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4d26d3f5378762706203d4d52ebc4b225e26e5ccd9174b3676a0563106e924. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZWFQ2356443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6d0ea7db75d53316ecfdbef8f09a29c722dd1a6a11a9e90e05e88a160f4040. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZWFQ2356448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b80d5244695a3826dd06de43700fb5b1f42e66e94dfd5003ccb558465a42b8. 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/QZTAU2414282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3e7cd4c562564a800700600833d2db1320a19e5621c3fa002b8c8c10d42ef8. 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/QZTB72402171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0922ec356aa0ee6a4aa230a24992af2337efa6656dfa49db5b44faf46547b18b. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZWFT2491796.
My Dreams, My Future, It's all right here within my reach
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc5bb75510751be1fbf505c405d2a4ef283bfef0c6f01114d4700d86cbefbcb3. 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/QT3F42412394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c3c55a30fb30f08f3af543dda661e0614741ccf21d12698e2a1e3936abb5c2. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QT3F42412395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412bb5b4e7e0b447d5d90753b6ed8a4707abc9bf5cb85ccd05c6c40b50888772. 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/QT3F42412396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3802fcfb2b4e1f6f3b0a003b23447376fd67854ad66b74ab9d37803decc3b7d0. 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/QT3F42412401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf394f54cb5988ba351e994141fe8d27ed19e9418e62ba38e415c21153e9ce517. 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/QT3F42412410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d5145b45ca96736f2bf582459ed6b6a7a34fb69bc1eb0e54978a9a33cd13f3. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZDA62563395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b2d8a485aba29fa4ebf5a8d3ee9c27132ec8112f33b0b26111d7c4764eafca. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZDA62563396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6270a89d74633748ab0c5583e5b06f043e976bb438303c2534754e4a76be07a9. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZHN92578874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43cabe87c0766f5d60a5b3acac56b519e9f4478dea39e8e3b1597b6c16da987. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZTBA2504650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8267e2ea30ae90c4faaf4e2ef46dec064f2f3e268ecc06dda2ec15300ed3a132. 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/QZES62229255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06eeb18bb1af711132fbf2bcd43b71907315344c8e4e981177ae09e2f1af4327. 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/CA6D22400306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21ecb48bb04e694f44dff2393fe9dbd46fdaeb542481c19503ac94cee12dd7b. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/CA6D22400251.