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 0xea252427469f92eb30ca6f399c50446dcdd201649467fd41d4bc85d8fb8ab39a. 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/f36f4360-f825-4d3f-9542-0792f641ce35.json and https://artists.proofprofile.net/proofs/artist/f36f4360-f825-4d3f-9542-0792f641ce35.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 0x4b47af0f08d13b3a3aafbef4d7bffcf1b45bedf6bacf4e24897b6e938da0e4f5. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZNJZ2114982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe477a6f2ac791573eead50f58e21f01d048b6bc4d926b41309763e44de788bf. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:27:19Z), 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/QZHZ52243876.
Kakashi Vs Ninjas de la Roca (Muerte de Obito)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f34d7e76c6c89711596840dc4d26ac2627fd894d579f87eb26668a3b5210ad4. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:57:37Z), 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/QZW9K2298335.
Sukuna Vs Jogo (El Incidente de Shibuya)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6743618b5763a949a4c36d6d2f647a8ee37e7c960b90df4cc3a93c641db7ed. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZGLS2360489.
Itadori Vs Mahito (El Incidente de Shibuya)
Itadori Vs Mahito - El Incidente de Shibuya
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf296057949de9e2d4e96a151af630a19127dd094461a9b0c287095ed89f57e9e. 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/QZNJX2326490.
Gojo Satoru Vs Maldiciones (El Incidente de Shibuya)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6afdfcbadca3968267a245468cdcb0194817b3fc6bd08a8e84bdbfb28715f83b. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:32:39Z), 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/US7VG2415140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce8007c52c0b8c04c9af6667472ae103958044268c1504e464b5ac48c7fe7fc. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:54:45Z), 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/QZWDE2407672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8132dcbe47d4c6f58fbf05f90ccd68c889e7d0325ebdb779f25e9c6efaa3c1. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:45:23Z), 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/GBRKQ2548374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf974fb726e7de06d424b50f9074a889f8383be6b2f37d17b67a82a07ad6ce3f. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/GBWUL2535813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e9d948046e68fa0d57bc2e741702b329a97ec336f6a96ebd9e3d8525b36e51. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:45:58Z), 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/QZTV32594504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14818294d99674bf907d31e3e3e230a6748681438854991e60eadace895d37df. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QZWDD2563950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab06d672780d2aae46c1e098f13aa989b1a6a20912066a94173086abe6e929a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:31:18Z), 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/QZWDE2598935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6874244e2cec7f573af849da5761a15ca5bd7fb5c0301c907d455812fb184568. 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/QZWV32550356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe92c1593cb3983c0e5e8980f9f87236298e924c02254d99ad673d8262f1816. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZWV32570554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaabb3c0a6f0d66e3c8f9b6934722045db31c141c9c0a6c043c3e2a210aa99abc. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZZ8A2531260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d684c618f467c1c73f431911b223d6545e0e1383f96460f186dd49f534273b3. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QZZ8A2582595.