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 0xf8f456ec3e262db6d9d6962ac55fe4e6081f622c1ddfc9581efc35ceba2f12d8. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/258630ce-1c7b-4196-8e43-cdf4e83e9dc4.json and https://artists.proofprofile.net/proofs/artist/258630ce-1c7b-4196-8e43-cdf4e83e9dc4.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 0xcdef07baa5159f0ad989c2ac47028541322aa38bf38ddf90f27b36b3eb9e0c6d. 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/JPJ902106870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb475d72351f2eb846d39165500e914882552e684b959e24a52b48d71f0e0844a. 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/JPJ902106890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74badc2e077b5ef9c5b65a0c56b662ed784450b0f4e14d422ed3f7ae245ceff3. 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/JPJ902106900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1618e5c0a9cc29d0f505bb112bef90326f7070c36228ca26b98f99ef4228f93. 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/JPJ902106910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58228e42115e4c68d8706f924d6f1852558bbd8ebb78381ede4cbd60ad0cda85. 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/JPJ902106920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5c3cdc1f36c259f6a83db89f797c54c6a2444b1556f88819e9325728b05a0a6. 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/JPJ902106950.
映画「恋する寄生虫」オリジナルサウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b794b11230b14d31ad0f27a88d4632672620065da6af52a94786c0589bc559. 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/JPN622100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cadc1d4b8a2ddd2390ff10de9e2f8fc1d97de50f03e246271ce0e27e33568f0. 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/JPN622100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8506becec1dc6c75efb94e4bb8b8563a6ac0ef292fd4cc351ff409d98269cc1. 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/JPN622100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7dceb5b30612e05299a73eefc45a782060ccd8542bf95430dee53c031ce4728. 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/JPN622100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea4370e1b7fecec5b8c5aacdcd3f3718ac3263b9ac2083b7f6523edd27b7365. 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/JPN622100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c0d66771ca45ad8a636916e182fb316fd28b62d4463d5fd9ab78d72767c14e. 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/JPH492100008.
「魔法使いの嫁 星待つひと」オリジナルサウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027f134fe7f95cb3c9194052ea0ac37054bb97a6ac51be37676888bc5259aa3e. 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/JPVI01840030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3dc0f2cdffbaa1cd63188e69bc6868bbe60dfab6b1c16aa3a6f9be1d63618a6. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/JPVI01840040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbc9de23f1698ec7e068eaabba55dbeb40f16c9ddbe93e75fff41576d14e2ed. 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/JPVI01840060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c03e807b3d6b90afb3162b7d3f6cf9fe3dca157b95394328d64fa4e3ddd9813. 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/JPVI01840070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebcb007780c5539b66ce765fa9f7ee6c610d64d5e3e440d55b0898ca9168672b. 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/JPVI01840100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78c210c880f49a6f1ad42fad1e2b9d3a3dbd2fbdf455310cce233b3b372f11d. 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/JPVI01840450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ef4a038f4d7aa35571a3441264af6c547e61a6a7541ea5259a9e131a08a451. 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/JPVI01840140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd46f649b8fa3669eddb9ad13e8fae11aa0974827c4b794f1eddd25a21758515. 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/JPVI01840150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3d17741b0e9dc75c34c985787ff4e4dd3370c0430631c9efc13d7817726daa. 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/JPVI01840200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273266e592436756a1371465ec23df20d3a9c064e74e4d8d0d3170ced44c433c. 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/JPVI01840520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf504e64101ce2e659cc794c0100279904780a4dbc0def17314bcd5e32914cc5f. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:09:19Z), 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/JPVI01840230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc7a7a98868c9627e72d35ce57c703376411280205b2c8dd1c8b91b13b94ebcf. 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/JPVI01840250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a354149bb7956bf97346337a2b701cb3c44702679f91c713ab5fd16fd43c556. 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/JPVI01840260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18325513f49978912e8bb7e77bc25d11a94426fe9043636fee15726ecadcf724. 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/JPVI01840270.
CLOCKWORK QUICK AND LIGHTNING SLOW(A Spell to make all things well)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70c34413535995245f89281b572bbbb762cda52bc7bfaf2d4a1d90d62591344. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPVI01840300.
Original Soundtrack from "Dead Dead Demon's DeDeDeDe Destruction"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc370db1907a4dc75920f41f276fb1b62ed775f90f5c69c70f843878b6ec9e189. 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/JPCO02437690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bb5d0ec9e42eecb04485cda3c19945131f8e182b1bb59d843212168c64456a. 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/JPCO02437700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3127e05664bf11670e1e7a61d13d26a92144db6fd1f47fc9c57c1a3a548e79dc. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPCO02437710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2096f9d3c4270a74e830a74c5e2cb2e58643799cf72c9bb3a68c83e181005cdd. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPCO02437720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43aa1e7a63519418adf989a6787528c27ecc6e0f7f35e3237105d5a5d526e9a. 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/JPCO02437730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74bba049484edd2584aa11da32b4fbafc7231ead59ddfd2f493ffae34183517e. 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/JPCO02437750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5557059e0a6ca10420aca59eff2ff041120f29e111bfdbaea021222deb97989. 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/JPCO02437760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee18b570c4247b026dc1050f1c9e6e16a3734c693e9d752c51995b8e0b8fc0ef. 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/JPCO02437770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478ab778072b0e57b65c4a1e50241d9c886774a9a3d9ff06d92ecd909988c374. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPCO02437840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48078a173bc1e816a8c8d5f6fd57a6911065e96ea86bf4c9ea69412f993732c3. 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/JPCO02437890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fd4a8e60c201c6fe98c56fb01a4a128a71591883b13a59c201cb910d16e5df. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:08:38Z), 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/JPCO02437920.
Undead Murder Farce (Original Series Soundtrack)