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 0xf58ad8355643c25278f01d60d270a18ccb08dc8ebffa7fc4877a7acf388cbcf3. 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/4de0afb5-be8f-4634-9716-bbc3e656c977.json and https://artists.proofprofile.net/proofs/artist/4de0afb5-be8f-4634-9716-bbc3e656c977.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 0xc0f8dc7e50f4b3c314670a208378095c0187c42bd05c192420395a815a0e972e. 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/JPES00001361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc51fbb4c51b9fc557b47d1ff45ab3ecc2d8de68fd811ba8fe545903de502036. 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/JPES00002141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b9c19443cd38f6718b105e329b30fde909e6da71835648766e16943919a8de. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPES00201421.
Boyfriend -partⅡ-／原題：What Makes Me Fall In Love
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1409878913a5ae931c44330e444ad4f7f809a49941c4c397b294c12a8ef72b2c. 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/JPES00201621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea6f0186689684fb1a6766dc28e0c1d917c9260953bcf812f5aa10ed827d048. 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/JPES00401901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3807b8e025cdb67a0cac1fc874ffe373ad0fe8a9818cd45cf0cd3b87e94ae26f. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/JPES00500721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9aa68b3e89f62467f9d25766e6601104d2c4c30519d3651213dce23245b695. 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/JPES00500401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99246b597efef0c291289d66ccd8d6169037faeb94ea969d40943cb9b4763049. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPES00502021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26c9addb579c3c52bbbc20b684616c1d5ead75e4b099998b9a597940b8f60c8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPES00501661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8287034bdbb3c5602581aaf0d4989d8f9835292ef536a06933661536212f5cb2. 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/JPES00601221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb08a49dc194e217bffc6de58a43527783a7ad79d23e9c5eb264602374aeb632. 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/JPES00603081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f147ca7c6566a07d14f166399e53a82624593f8cc4eb85b81f7d7a22522bac7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPES00800321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6712cf98f451e34454b6500d52b4de91301b7b7d9a489f4c0d3d9daf49f2235e. 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/JPES00900841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1360b56a2f85c3ae975e57f4d2629bb3634feff0c3419744cea70dc3680bc8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPES00901842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483336a282b7b395b8891b9d405ee22e6e76533402731095a59d8fa79d23d173. 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/JPES09904342.
Sunny Day Sunday / サイクリングビート 330 BESTタッグ