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 0xf7596f9e49bf77a171540cec3a97c42caa8df94a2de946a6942a40468f5694ca. 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/37441c52-bff7-4696-8bcb-5f6d8b0cb77a.json and https://artists.proofprofile.net/proofs/artist/37441c52-bff7-4696-8bcb-5f6d8b0cb77a.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 0x7c6bd194b856b667face363087ae67980b5c9f85bd65c641b8f2170d56e8a086. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:06:18Z), 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/UKELY1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259b8546caadf6c582a5245707f0084f5d31184fc63ad329ebe05094a8a7988b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/UKELY1700064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0a14eb3b919484fb2b4255305fa5dedeebe30feec352619f350060a7016a09. 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/UKELY1800079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e48244939f6b316e09cea8a0032e05deb86ef5ed52f936a254d3ec78e09627e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/UKELY1800131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e1fcbbca9e51356d4fa215eada794fadd124b39d8d953dd6cb71339e074881. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/UKELY1700063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312805d208d109c66a705d829c0a17e4e12d72db68c04ada9a0a3b5192fe1d2d. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/UKELY1800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38460be1c2150e0af221da84b44029ccf4b5e617e6fc623db1b42199848f0845. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/UKELY1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f380fd09c1cc7a6055933bb53ace6cd506eef36fc33b586e54f20a0a385cef. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/UKELY1800025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965db65302723a7cf45ef78882205c1f105cd0a8783ccae06448cce4e4b56837. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/UKELY1800200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e718b4d80e5a60ddf8eeace43ecb8f01b7c2558af2d38afef21e8a9557dae23. 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/UKELY1800172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5746b1281ed24146ccb289f41fe0c249d9c3dc2ec44d284f12d38f1c30be5c8c. 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/UKELY1900027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622e49ee7b7f53779579c7357cb8753bbc0b2b804beff9a0d70059a3f757fd1b. 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/UKELY1900057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12116645be3332c3b91b0b88b5919bd55e9f43ce73c128e603c2ccee43097c0. 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/UKELY1900038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453492774fabfca3b2f6a6a44237e8eb2cc6f3028bc27862b956457d08dbf5b5. 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/UKELY1900045.
All Night, Pt. 2 / Caught Up (Mahogany Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffde76224b91cc598eeaa5d3764146ebd3711f154d4e814fa62c47d72c5c3bff. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:51:25Z), 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/UKELY1900096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b2f37add233429d714a6438b37a1978477414c8f43b133f11a9a5abe58fe0d. 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/UKELY2000127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb239ec5580d298d2296130f19164eba9bbe79c0f1b7aefee2905a1f4a6b59f10. 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/UKELY2100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f60790c1d859ad5c26e30122a3aed289c34869817ad8ad83bfd7ceaa5924e26. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/UKELY2100027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb5c57648ffcf49dc6c5935f3ced95a0cb0fae5969eef5bf8b0402655fbd627. 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/UKELY2100041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301b7b3d924be2cdb603526037ff9d3540bf39ee9f25b505de777f6f94d9ebe1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/UK6KW2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d03a686d690d7d1645dac4abb351b6ba029c6afc2299fe78fff952154042289. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QM4TW2434843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d1817bb1599485894f933b0297023e1b99167d2afaddf1182cc173c5f1109f. 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/QM6N22425750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65c23571a28942ec715fa44811ab17f1811217c50d02ed64da435ceeb83077d. 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/QMDA72438023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a59124176f4ec5a23fe4f95e57bf8e4647b300e319da4a3c615623cd823d9b3. 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/UKQNV2000081.