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 0xf69121c330e81032f71448351f6478d3d3d50bd5fdddc505f26f70593e6b97e5. 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/5712f147-cd4b-4a96-9c85-cf950d890923.json and https://artists.proofprofile.net/proofs/artist/5712f147-cd4b-4a96-9c85-cf950d890923.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 0xd62bb014545bd3d751e8b7378922352473b44488d2596c6909a215e1f20aacd0. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/GBSMU9063242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc2ae16d9cab0a510fdc4f39bff6a5af26407e31d5052bbf326254dc06b4bc5. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/GBSMU9063247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e006f3e3488b414ebcd32ac3c24b8219457cdd8d61d05b8feed0922fc30ebf. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GBSMU9339897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e6de6f08b86466a93cc3e5861ad97f9a27abb645f6fe8a5221b7e5d319aebf. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/GBSMU9569617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280140dbb26b33b84e80bb4fe54dd2d2eedb4b915888f366da5b19b7dbd0a32e. 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/GBSMU9569621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2c2eb517d48926b487156f96fbe182c2803290c324f0acaa6176561b839bef. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:52:49Z), 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/GBSMU9569623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b8a0e59fbf7f990ac829532e96a1794fcc677f0ab1a6d1de91de8b45b07d21. 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/GX4R52169245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4818207d7ee6735ef5798755f615ecb56696a63deaaae30215295976024b6c. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:59:25Z), 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/GX4R52169251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca7d527f52035c37415750e9e33ab2cf957af803b3c0fce2abc8e1ec27c695a. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/GX5MX2122263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996ff53a64fb0406d74433847695c3a8f27a236252ecd99305264aad676b6df0. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:45:27Z), 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/GX5MX2122268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5ed0c5ac10163923b11f2587fe2e61fbe64fa435927c648a3eb718d5313ef3. 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/GX3HH2257831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8412681a15c034ed0d5fb57b1357daf717acd2dbbe809e997d6cf5855052e7a. 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/GX5MX2263143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00fb7c1de96f89218bed37abcd7339ee2ee295766fa77b7a348e94db44b704e. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/GX5MY2262074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a7ee2fafed5bc501373ba645bd054ae6f89249ad04f77c3956e4510d8ab421. 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/GX8KD2274360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4004140c0c6ea5d4608bba66bd72c770988aaf4632d691fdaa7ba09305fe9a20. 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/GX8LE2373411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4647766316966f2f6d256e67cab7cf454d761dabb0200149f069218dd0e7c81c. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/AUGBT2329640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dbe4b55259152116e6d1003f6d1f89c52b85e2bd40e6a7709fec05d2f6cfe12. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GXBDT2481656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db0f62a307e2c9ed1f1f35bcac90d912d2dc5c66f28990fc4c964d9c8456aa3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GXBDT2430800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6971e5286e20e2095a74084d0e9b9ef1a1425dff2d9d43fafc7659f0b0c13e0. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GXBDT2426307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220e69689e0c4e8f570276a00f2eea5c45c9ad2ab8a8f135e3ad1cfb3b759c22. 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/GX89G2528439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0a30023c50779fc08635922cc05cf2aabce515c86d0c135de5f9102f0fcf22. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:16:55Z), 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/GX89G2572499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156da3ebf89526a89bbb8b2d7eb4895fed8819f446df2df45c2a2348af9b6f68. 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/GX89G2567063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a48036e6699867490326f66557ea3c679596070fa326d1ea3f7cc79de0eb12e. 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/GBLLT2502966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f6ea496c715bfd6c654809b08fa37ab98dbc657bb88d342df5a31142dc5ef9. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/GBLLT2502967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b64324e2dae9b5c392e83f3f0df63b1426e4c8e9a828075da56cbe1ceb12ae. 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/GBLLT2502969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x424dfc26cccb2a05f10fb4b97833ee51848ba8c611280697643671313817d1eb. 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/GBLLT2502972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d7005d5454817b8793e560e50cc4760af130833bd8058a57333f6930383f27. 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/GBLLT2502974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc1ceaae0df68a6ed99b235544ec4e3766c8501da8de5e008cef21881a1bd20. 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/GX8LD2516732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b30110fb1ecd0eb9c76d5c914db6355c36e3559361fd3451022b82f6141f82. 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/GX8LD2516017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23da0c1b610268fa9bf09abbd5a8007f41b59b8dc3c4b35eff85f6a02492f41b. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GX8LD2574053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3e3e95ec93aaf4d02bb773c22c4c64d968365caaa67fee96aee96bd1bdecc4. 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/GX8LD2506218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd365ed72afe35034aad7e0cc45243e70e2626c4e6ffbed52d8604568c051c47. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/GX8LD2576796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc107e4c52c61a65003eb93123ec4b7de877dbeead905ab523734a873fbef42. 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/GX8LD2588487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50541b69000c8309fa542c35cab8d47e27d3445b9fa0cbbf37b559344c4a3a9b. 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/GX8LD2556026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4144e76951e442a3b59e7e0663d317a4f93efeeea25955d9ad832f95da6aa82. 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/GX8LD2524612.