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 0xf7719ab38cf1851a92bccaa890d959397b16116fa7a65df58d18fb46939bea2b. 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/7b3357fb-abbb-4238-9245-d95520e00216.json and https://artists.proofprofile.net/proofs/artist/7b3357fb-abbb-4238-9245-d95520e00216.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 0x4cb7253566eec73c0995d7d803cdfc36ac1f7bee43e8ba1711014dd98e4a7173. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:53:10Z), 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/SE6I32296478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d013f79c9f1b7771e5fd1fd20c02fe8d96e6117b506990eeff804fd2b8807f5. 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/SE6I32296479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ed74c51787454d7c25721d42a003d557853e78762fe9519c86608aeefedf06. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:34:34Z), 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/SE6I32296481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0158339ff00daefc9cdc6ceccd3de1d7b12a25d5eabf8e39f97fcc8858390a. 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/SE6I32296482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9dffd256446595b66aeec2e250d016884e5a6d0fced40989b892941abda32c. 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/SE6I32296484.
EN ATTENDANT RESTEZ BRANCHÉ, Vol. 2 (2022 Remastered Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fbaa0b995d9c832f93ed82cd157b313e26391f864ac799624d35f73e3e74604. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/SE6XY2251986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4526f460611e361e6ba35e5b5a80ddcf6fff470940f917a7a53b626cbc7974. 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/SE6XY2251987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa61c437c7c7afa373641de0d30a9a210fba57b5a72e54bbcb7d61c0a1b783c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/SE6XY2251988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceeb0bed5a69bd9885f75fb51040c70f072411e054ac9a2a1cf3693db9f12962. 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/SE5BU2307854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8093648a0d1099aaff1d129ade9e99db0acd628ddfcf10c34ce59248fe9de18. 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/TCAHK2352790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc919d84070c857ff234db9bac1fd643fb653a0b89dd5689b35b9f689916106cf. 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/TCAHL2387945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740e321d7a14552868e6bbc2fc96fc68e8345b5e60a8e6872252028be25d799f. 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/TCAHT2470754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774ccb344890b62f823e6f0a1236abb468ff4f1d571e840842b8364fffad9846. 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/TCAHT2470759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9fa1697c8634b1a7e997167d1a4646ec700e195989b81388c124b27fb202d59. 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/TCAHT2470786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ddc297513899a09443a2d9064737408681d7fd88cba68174a357878cab12597. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:22:58Z), 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/TCAHT2470792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c09ff80ea763f6160239f783b9c5ed7460f309598140898ddb5d93a0acaa5cd. 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/TCAHT2470796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36ca119c4fb324c32568f04ac54d3df1c23fda9f54b28c5a4e5b478bc859921. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:24:16Z), 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/TCAHT2470798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a5f5803cb49926bcaa601af3e1050866eea2acb877364245ef6ed2dd6cbe9b. Chain 2 (Bitcoin): anchored in block 958678 (2026-07-19T05:59:57Z), 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/TCAHT2470803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ac8b5ea7681960cf5545122383b9dba042d3226c2b0766803c7390f3acb16e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCAIC2474110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7245d3796818fcc00c4dc971df8facadd621e392f64b9385a6ed026936a66347. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/TCAJE2425740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb217c047fe674f4b770e8114a9a7d526925b42b5734eac1aaf1dfa2b6cc68ebd. 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/TCAJP2507988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93ba9c678845b949d1b08d50c5f7b7cbc40d29da7c46bc31f7ee17b9a5425aa. 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/TCAJP2507995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1463a492266acd3bd9c8b3ebbb79b7cb5abf87f5544764a8f94f4d0112e9cdea. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/TCAJQ2508028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf2cd85d455766650ab426521b839e59809ace6d143ad31382a0582cf7d5492. 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/TCAJP2508060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3acbcc5d3edd2452ae95d150939bde23ecefcf953fb2902d5da8a1eb8de95f23. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/TCAJP2508126.