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 0xd598929f6bf2e5ad39d9dcf80598efa02e51f29fc81f616ea4de46ce27a33f4c. 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/63db3ad2-406a-4e53-b2ce-d1b86d838629.json and https://artists.proofprofile.net/proofs/artist/63db3ad2-406a-4e53-b2ce-d1b86d838629.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 0x558d5bbed0619cda843cea3840ba4a2c75f9ef9bf666e8a63d5e8de529cfdcb8. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBJYR1800091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3d9df2d9ee4e86ef39f2265ee0b99f97ead048415f084e24815d20740ac69d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GBJYR1800092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2763a2228a3a46f42c267fe917fbc9c54a60557d899651335beebfd8bf3ad1. 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/GBJYR1800093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c5eed4362efbe846c71c00a67a37d6e59057d087c9703fe08ea756df426f47. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/GBJYR1800094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63547f2eb89486161eb97e3325d86665faa60bd223a61fe04bab4a038634a42. 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/GBJYR1800087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ff9338a33385f987a93a52a15f3220fbf452df7f4779576533655e45e41440. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/GBJYR1800088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2182dea77459fc19ba3e2cbe72bb5e88ae42c1169352e0909e2981a9af6a134d. 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/GBJYR1800089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43687177f986bce32b392ecc1ff12f50d258761ad2a9c158efbf3e37db7d2e12. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GBJYR1800118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7928eb43442ef8c5de26f09a37cd49468b651122778bf1f004a0669033eaf30a. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GBJYR1800116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb142763121100ae0ca693d5b85f9af0a478bc871726aac0526f9909588658c04. 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/GBJYR1800095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eea2bd9e35d9a7ccdff88026cea183aa40d610313cddfc56465692514c98754. 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/GBJYR1800097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d856bc4d562d3e45786997f6be62bc3eaa54ca4f7ea28702eea5810f0ab6741. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBJYR1800098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5a20e3e0576482056b70a06bd3932f8031a399254b9c5d2a1484eff2bb1da7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBJYR1800121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54c2a48566338cf98e2d342a24c2be3fae21ffd263259f41865397d98c4b8fe. 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/GBJYR1800107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6389edb2ac3cc2a81bf37ea8bbf708f2bf40eb67da55e8aaddf62651542c0a77. 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/GBJYR1800111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d05db43046cb76122a0b496623e2323757f78aa3d0a6bc28cd60c1772d002b. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/GBJYR1800112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64697c51fddbd68df6695e20b0e3324c5799dcc3a52199313ad6e03ca27bb65. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/GBJYR1800117.
Did It All for Love (feat. John Wetton) - 12" Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb585f45f48ef2775f3e78b75b008173a17e38099d9b7d5cfd9cdbe65fc597a40. 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/GBJYR1800119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f228e0607b09261329f4f86ba01da2ea0657af5ba869ba0b1a4fa8c473d37c5. 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/GBJYR1800120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb142763121100ae0ca693d5b85f9af0a478bc871726aac0526f9909588658c04. 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/GBJYR1800095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8c95a20952818dd4c2fb0fefcb61a27eb65007c7343b2eb06ff7eb66da8f2d. 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/GBJYR1800096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eea2bd9e35d9a7ccdff88026cea183aa40d610313cddfc56465692514c98754. 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/GBJYR1800097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d856bc4d562d3e45786997f6be62bc3eaa54ca4f7ea28702eea5810f0ab6741. 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/GBJYR1800098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4fe9c77d5cf5429f7ff45ab0482dabb4e4e359b11e9c1159aa74c22ad2c61a. 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/GBJYR1800099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c76031bacce07de6825bd3340edc9b7d0daea4988f5b9ef46271e1b5a565d6a. 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/GBJYR1800100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae1f1dd5e210808b71ef89d0a95180df8b9efce45c7a639c8040dbe89f1587d. 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/GBJYR1800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133a79d6355c2a52c62b9021e60464057daf07c4cd422856fb6a160490107ce5. 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/GBJYR1800102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43bb5f6bafe591d8089c794fc8bab4e48ed73fd5c8905d21e758cffdf063f007. 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/GBJYR1800103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bce132d9ed6e9a3ccf2a54fd0897b2c53e348c49a4aaced20771ad636c62beb. 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/GBJYR1800104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc012738c58bf12467f78ea36fa9d0f02143ac4fd04bc57a23ef625071c633cb5. 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/GBJYR1800105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eea2bd9e35d9a7ccdff88026cea183aa40d610313cddfc56465692514c98754. 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/GBJYR1800097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb585f45f48ef2775f3e78b75b008173a17e38099d9b7d5cfd9cdbe65fc597a40. 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/GBJYR1800119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ff9338a33385f987a93a52a15f3220fbf452df7f4779576533655e45e41440. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/GBJYR1800088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb152db44b1fb0171d63c042080037c9c1019382cde88f25b4968a297ad6d8e8. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DEQ022273263.