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 0x851b2fb970a64f51e3ad906d2c923dc0dd05101492dfe71906fbfb8d1575e777. 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/10cd81ae-3d73-4a34-8379-27e9af0463c1.json and https://artists.proofprofile.net/proofs/artist/10cd81ae-3d73-4a34-8379-27e9af0463c1.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 0x09eb07e7443c95050a4ead4b8e982775785880e5295a62455901c4e0c0465748. 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/QZES72098516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635c579df52362db4f986805dc19822b82906a49910522016e76cee67374a29e. 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/QZES82003251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3509c88b030ed7119c14fa8d0bf9f61820c53c85ba5c81d45a1834402eb9d928. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZES72098518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6c95eecb1082326448a680c1371943247b767625f8f91eb1538562983a42cb. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZES72098517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f2ca4790f20e40356873067e2345275eb6f7a6938413751a4ef0f2f926d652. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:37:29Z), 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/QZHN82038428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ef863fe5a27a832e620eaa27875a709daeda754e7ed536341b4a0ac8d79886. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZHN92034880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5081592455a5d5252518c8ba03668a6f284be466ea2b9ba6ea7314142ccd0f37. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZHNC2025033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebdf23ca06807b734fafb0f96c0cb7e7c408bde08a1d8f96021a82604e940e97. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:51:58Z), 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/QZFZ42396875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa352edbd2f732288c7c29d820419f30802d63ae64f6de85e6db881c71135bd. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZFZ42396873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1764a427fea563d6afd6ce1962868cbdce52785f7b5daa970abd42e14314de. 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/QZFZ42394912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbde79584e49641bef54f8add58168c75f1c70b96d193d21dc6d04cbe555256. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:49:23Z), 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/QZFZ42396888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4975fe89d4508c2c2995ea6c68b36b69a92b54517bc044e6a52981d9e81e7c98. 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/QZFZ42396884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be167b729bebeb98296a12301eb346a3d062c7bfbdc5f11ed9983971eb8ab2b. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZFZ42396880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188466a32a8cc4b0cec616f1cd92a77cf2165a6d99d9acb54914997e16298fc0. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZFZ62332358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8c52f75cd2d1b4d2b1f47a17bfe922faf88d5b90af1f6a97eeb453c8915cd8. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/QZTB22357864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2bf968ee2a7f3559060ea49862e78b1d465b6b9fd0f94b4a5191cd4deedff8. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZHN52466280.
Sin Ti (CHELICO & PUTOSTUDIO) [NOMELOESPERABA]
Jonytechnorap (CHELICO & Noize Burner & Greens) [NOMELOESPERABA]
To Fumao (CHELICO & Noize Burner & Greens) [NOMELOESPERABA]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61100a319814098e32c33df62185ec7fcdf6dee7c5f64412f9f1f24c6c1bd6b. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/QZWFV2467574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00a6f578e6d40388e6f7ffa13d3f89d3256145bcb3a02b58a9084a10b9f6687. 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/GXF9Q2439698.