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 0xbeea57ab6efa69e818fd51c29097c00185f7a9d09402313be42bfd9d4a269911. 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/e453f4e0-2311-450f-9e9e-54a4448109ea.json and https://artists.proofprofile.net/proofs/artist/e453f4e0-2311-450f-9e9e-54a4448109ea.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 0x35d2360d4d21261ca3989c1b02ec6ab7ce3fcc5c33d001752b5bc509a11e5e31. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/GBDNH1000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefecf9f677e2a4b1bc7651e04c6a7052f0a9baf564b3778210962d738dddefc5. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/GBDNH1000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df9f40e202a26d8930495b68e8ec235a8378527927a80477df4e28df0363d06. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USYAH1000179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe263185488eafe1851c6c3558137e854750594330113340b5211aab8f7c9fb60. 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/USYAH1000183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9eab77bf6b5741b9b66c9ff5872d6dd4d2b003f57259301526b44590ec0c536. 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/GBDNH1100113.
What Did I Do? (All The Lights Remix) [Feat. Lucy Taylor]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e9f44ce50232f92b6c1a3e03a84740cbfe3ff23ef3301db28edca8f60005e4. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/NLC281112343.
What Did I Do (feat. Lucy Taylor) [Radio Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f20617f8b8b654ed97eb9af8205d50f2947a2ac1f0e93a0ed584bffa0fb3577. 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/GBWWP1400475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2be80417742be2f83442807d960d5620c727e600f4b33242f4837f18b9e0f22. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/GBWWP1400477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23090959685bc015c4d2741cae8f28762073867d3d1a3b707da7c025cbc44052. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/GBWWP1400479.
Grounds for Resentment (feat. Olly Alexander)
Versions of Us (feat. Corinne Bailey Rae)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce92f3153b7f7ac646dc06f35cc58a48aa02278c77ebfa48f4e3362f4b3b9f1b. 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/GB5KW1702050.
W.A.I.S.T.D. - Genix Extended Mix (Mixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f69b25f311a2f69ef41f7e3166f32441ef0916ba55ed2bdeb7cacd3f4ef98fb. 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/DEG932401973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4afd2f6c76b02b94ccd19382f669581a075dbb9ebe19688ba3ea8585421f23f. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/DEG932401974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de1604973f6dd6eee4a5cd23244d8c510a012cd4f8880ff98c8452ba1c31f8c. 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/DEG932401975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9809cdf8b14c669ac99aeb41c6e1e53b5e22939cd0629b99b2331cc0eec665. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEG932401976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00bf620c8d79bb591c2ea6346c5aad9f460855f9055dc832d228fe34062141e8. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/DEG932401978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d4d2b5be894df76e57ded5b53b16492cb39e0cbbc87f0a4d67b6fbe2f3068f. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/DEG932401979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e252b6338735cbb2208b2cf41e44cd025e04d81d4bfc5638f78d3254a014863. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/DEG932401980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae15af4612aaf07ab808769487b7fba3d8c6693ab1448a53d311f6d42d910ab. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/DEG932401981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2e9782a26ff2fe6aa439605289cae1ca9e8b1756f1d7ed652d8f181d8449cb. 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/DEG932401982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca0a927b1540e0922da8a9c0e7c25b5e685124f852d3216e7725e496f5b1197. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/DEG932401983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1d8ed177143c5b48c08997d0f3adbec12bfb08346744774357bc4e21ba3b82. 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/GBUM71305332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50af1b98b31198b088a8ab9cf47ed064b7f8d819e2fecf7f8ef3105677402dee. 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/GBEWA2104572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b2a13c711613104310a2a11396dde03bc689aaa5ca67314347c65575c8467e. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/GBEWA2200730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2cad3c05af1ddf25815fec90f0a8ba4a5340bdd92186956c50df75e54a13a0. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/GBEWA2200731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50af1b98b31198b088a8ab9cf47ed064b7f8d819e2fecf7f8ef3105677402dee. 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/GBEWA2104572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b2a13c711613104310a2a11396dde03bc689aaa5ca67314347c65575c8467e. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/GBEWA2200730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50af1b98b31198b088a8ab9cf47ed064b7f8d819e2fecf7f8ef3105677402dee. 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/GBEWA2104572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6767e4be7f1fa08a2ef3b17aaeb10a2a03b2eaadbb6a856bfda75039fd1dc1df. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR2PA1100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b8a74eaa903d17a222b071334ddcbeda94d2ce9fea5a132439194a098d4426. 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/FR2PA1100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4b3987f5d4f6a84f6b64be9be98006fb53ff30f28bbe1a9b88838c8452606b. 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/FR2PA1100070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a8f0e7d0699959da40e0e901d3006f298768c96b8b80358c3a00e37e8401bf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM71310269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d383ec06471350dc50d2c849eb169ec4f57458cff53305ce3763666cf98f255. 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/GBCJY1600082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98b783ca6e9807d7abbe719db1c42ee74cb31fd13fe4f6f64db8837eebfdf22. 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/GBEWA2201394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1410a48a948106d3d2b046f465dc12a978e00ef621a80844fae0009c9ca3bb5a. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBEWA2200048.
W.A.I.S.T.D. (feat. Kele) - [Genix Extended Mix] [Mixed]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f519b78fff527aa107fc1cfad0b5891e2b405812e56a54833718da85bba8a8. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/GBHFW2100106.