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 0x038163122a75f9316488f96bc3180c8df3ee74f55c522185da96200276b16189. 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/1cf053f9-4f05-4d10-b5f5-5743d9e6a129.json and https://artists.proofprofile.net/proofs/artist/1cf053f9-4f05-4d10-b5f5-5743d9e6a129.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 0x37ca3673c9f190586fdc965d80ab726e26de8302005a7627a3f93901ef7711cc. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/US3DF2076892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13887ec943d01e7fb9f261467af805c2414e8d17d61e7f966a655cb03c74842. 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/DEQ022100552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbcfbfd09e9e41df4c91bd1b659a1b7379c6e7bf820a4daaf6b2102d6207274. 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/USAT22101410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ba944d94bf31efa1494e049fb7cfb674d3de95aa36cc03686a5466205e0196. 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/DEQ022117237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d85e1385092f7e3496d8c69eeee0f42cf9cfcc3e813641a18793b3e97ea45d. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:48:32Z), 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/QZTAU2273223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x494de3b701b41e21262f109e1f6326ad9c559f17f62e75a5f4c6b2afdec15ab5. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/QZTBA2202426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f80774e360cf2f25d487ac152f75c3dff18e37e504e621cfbd2db188100f83. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZFYZ2354649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd5c85aa49260caaf1e27fb668598ac2d76b5cdad7e6b75ff75fc876b608c5a. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/QZES72392537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcabb7888089e66af749462492c99db7eeffdcc415d0f302317209d1b0eac1315. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/QZES72392538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f96ee4f5e4776062e1f34081f11e32cf0c43ae4aed99c547047b7c2f2dd322a. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZMER2343954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09dbc7ae9535b67f8539acbf48c99fd0ab555b774f5a06b71c059b131e55e13f. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZWFE2310147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58332ebcd97b3f52044029217c42bdbfe8fb1eccefa5897653273686916eead9. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/QZWFH2320573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f069236dc78483e721b1408c31d5a43baccd66d5cbfb53cc18ca2379a1f708. 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/QZWFH2322018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9736cd6e34e4395b83f2b09505f70dadc8ff29a72b9cf187024b421d79d443. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZDA42460222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9d352a19c4031a61c28f46bcea781f78df4f34b21539dc5e86a81d37696370. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:35:40Z), 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/QZDA42461224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1057d21a7111e40c3ee37de718e417dba7c78ac58fc6fd77a3844e768f5e045c. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZDA42493411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e76db39007c15af8eaa733db58439638b1584a5f174b3ca7c8d40d34003475b. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZES72498225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0159672a64a57d2efbd69c072efce7860d54d471e7e270c418ef14c0aa760fc6. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZMEN2454948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881b859e9034de85101b45679e0bdda08e548834e82d359138c0054bbc31a528. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/QZNWW2492388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecd7515f784be392cb235d265d9e53e9cbef0faa80eb82db3853804c3ad460e. 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/QZTAT2427828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a41ec3ffc3db672ca85958cabc4b791ef02d460b0dfb0befeec6d0b5a4de85d. 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/QZTB82498454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacde214888d87aea224568f12fa59627ec722711d077bd85e64b1915b309f273. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/QZTBA2417395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf8aaf4a136cbb6525bc0956dd29639e50f1f771ffe511be65ce0cf90914f53. 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/QZWFF2439374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde7a3a575bd748ea45350867c74f468d5449113007f63205430f78014e72fb9. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZFYZ2595149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ee80df1f14d8094539486607577db3c65212321a7449b77499321f2261e700. 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/QZFZ32546015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce33f02a14662912960d4b081233ac173a2f9e11de40d358c0e22646180c6993. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZES72593378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2cff8fd39cf439cdb8ac854eea9168d1a646e3b8ee89ac8fadbf4930d7141f1. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:04:20Z), 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/QZHNB2579185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2498bf5673093e2ea4c074eb65a52ca229227f6e8b0c8e09a1941e071ecf906f. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:00:20Z), 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/QZK6K2512258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4345ef9cfa7416979605ed723111ca5fcb67542fa5d3454c65cfcfe613137b66. 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/QZZ7S2504777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dccf838530f7da0c15cd81227c31477594194ff21a75619e34156362a0c9bbe. 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/UKW3Z2200485.
millinaissance III: Our Ancestors Journey
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9994d95f277c9dba2150348911cc1ac175f7d9a7bf82d3cb1f90459d0f4c602b. 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/QZHN82233638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265288b95cfee4f6362f30f03c0768ad15f47077650bc9e6ec9c46c9e77176fd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2286540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd264719e0632ac8fb3be48398fd2cc8efccf97beec90e5b42442ebe123241d90. 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/NL4YD2200003.