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 0x65fb366ac8de3af1fd93d3754e9201dcb83f1206a27f7aefd9157164cfb9b8af. 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/19bac54a-8c4b-4fc1-a4e9-b81e85d80a9c.json and https://artists.proofprofile.net/proofs/artist/19bac54a-8c4b-4fc1-a4e9-b81e85d80a9c.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 0x84fd6f29c75dd052328057cf0d6dcf4aeed59a21b38812a9fdae9cbf5b686e8c. 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/GBAKW9600532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e35cf7ad7e58111d6c3a98692354acaeea2be83f87316dc8a0a80fc1a1ede8b. 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/GBAKW9700313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee191a7869cb54e19d2e85fc04a8275cad959d291a42cac47d779dd683660bfa. 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/GBAKW9700314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6333d96e11e91131b26d88a1a8ade159fc1210213a1b76876bf9d6c576ec3067. 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/GBAKW9700316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf38e48a7c56dfa4bc0d11ea333c5293b8be64dbaeaf2bde3c6dc5a9944447a4. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/GBAKW9700318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c62aa55cdede0975737d6599968f522d5ac8d5d950412f68b174aab667d444. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:44:24Z), 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/GBAKW9700320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb5e5c05694f8aa22bc98cf19b47ed4fdd7ec8f7d270985821a8b9b86d83900d. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/GBAKW9601080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5345d8f4e0e0512748907095121a214ec04b4038af2bf11dd606fbf2cb69b28c. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/GBCLG9800191.
Last Bingo In Paris (Bande Originale Du Film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25efa3047e1e762d7c928545148289f8c6ff04f0a2925536acffafe8ee22acf. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBWN41300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24edf9bfc65686e52697ab5a27dde621a8c458fb4326422f8d635131dc620da9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBWN41300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b73cb28142ee87830f3f8e651747f5cbe38c9f7540dc36e12b07639f13bbb99. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBWN41300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3f2630ef0d81d2528d3bb5ba855f6e28e1db3ea41a7dabec2cea476de4cec1. 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/GBWN41300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1bc420caf73dc783da031c0c638cf512e500cb08b37709565600011bd047163. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBWN41300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2258b2ea012894283f429def476f325fb7ac8b9119c0049340da63b824f756c. 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/GBWN41300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089f79c785e8bc98fc0aae25307a542594a70c228f2fbf9739aaa4686e5222c4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBBTF9700092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4078617961a43a1617d4c2ae9a9cd8663ce2cee629cd923975c035790eeaeb15. 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/GBBTF9700090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197cf7370f051febf9e3ef2ac7bd45fe9787a9434effa5d20691b392014e344e. 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/GBBTF9700089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01bfbcabd2e0d247e3ba825219330fc32e78470f90e65e286d8d066b85d0154. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBBTF9700091.
The End Of Violence (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2898ce72d81723d2f1a33986e01954e1ed19477fce310a4318751e6093bdfac2. 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/USOR19700815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa688cce779f8b07fb094a8b21a4adbd146e13a0b99094d10a8d524aa403466cf. 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/GBAAN9500161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6602ac5eb4acbff14e586d568eb8083234817e58faaae337c2e4e5e0c5a564c8. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBAKW0100027.
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
Discothèque - Howie B, Hairy B Mix / Remastered 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81af3f21a59e8b725d7cdbdf76eaa9c6dc1b40677717b6d37a19333fc06ca3ef. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBUM72401929.