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 0x06178b93350283c6452e983be21c3533cb9b01c44b46acaf9ed953b1af16f436. 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/5e8f8f42-7514-49e3-9c4e-3a5e3781eee5.json and https://artists.proofprofile.net/proofs/artist/5e8f8f42-7514-49e3-9c4e-3a5e3781eee5.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 0xbac0e59b90455848d17dfa940e651fd9a969a7c2dca145118537881cff888891. 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/USCGJ1946270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x957bb3c767aeafbd048174b301c9ca6a13102e48bd7d629eedf687981c415432. 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/USCGJ1946271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe5379b4e3b18ea4704db0eb83fc2061187d30f39272f50066b340cea74fd9e. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/USCGJ1908245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1c633c940ea1aa889624085088662a44602ed0f2b1c61769ead0c7ed0c19a8. 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/USCGJ1908248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4ec5ec9bc03ddecfc739ff86ec504ac84e3dd35953042373b7dfc63550e2b8. Chain 2 (Bitcoin): anchored in block 957552 (2026-07-11T10:04:42Z), 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/USCGJ1908249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec19f85ddc82f1ee2d1018b3777fecd8b2d6f0b8de3db9d1dea9e2ddf801d780. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/USCGJ1908250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c09158bc031690ae3b7d1f1ccf070508093ee559b2e6e1ca367e6a751886e2a. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/USCGJ1908251.
Touch Me Lord (Your Grace) [feat. Kelvocal]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa7eae1860c0281c8e2e046232fe29140981f0e9fd83d1f6a85fa15cafdebca. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/USCGJ1908252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7561ccd417e2d8de25f69c2a650ee95c3859dd0fb329a6d32d0b6ab17fbcebdc. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USCGJ1908253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7866d026af2b1bf9d300f509287136877e7654b0cb5db6c9e2b4f1482487069. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USCGJ1908254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac68c98db1edf4da711a1f313e847ea8fe0b5c9629b3307af10e0e0608137af. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/USCGJ1908255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd080aed0f6e33c62001b9f7a8aecf8493637588780cfb338020a04574a16bb. 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/USL4R2102782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a165110b807d415651a6b3c26cf1a5f5f2f6758c085be86e8959fc59b1242b. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USL4R2102783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a43d43b790f46919fb571e0ad520800deb290206b2d9d94b2063e1e3944a0f. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USL4R2102784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a21d7689d3e6ca629479b215af237922290a7b0cf5adc370a515bf266354dc. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USL4R2102785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1474dae931c771136ed8d90963824aafadccf5d0f660d54da39f9b6ef4c15a30. 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/USL4R2102789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192b6c5e14178910e832b4084ae318d459bbcb2dd537d6a6630565bca70fd7e1. 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/USCGH2127718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d82c759c7bc9d562cd70f5d89121cd2c040cac758de60b6d1818f707487a854. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/USHM22269042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d04ad1d9de40c841045a1ad75b9518c0af826394b6343e47bbf2b8bb48221f2. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/USMH92343934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb006aa08766092fb26de1b79f59c8efc9422460dda800fcbdb9dcb37a5fe761. 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/USHM22415005.