{"copyright_id":"0xbc27180aac13d9cca1ee94403a4dd4d3c97daa8e977fa1fe07565781ab0393ce","name":"Noriyasu Takeuchi","registered_at":"2026-06-12T11:42:44Z","symbol":"NIM0287317","token_address":"0xcf3a0cf2fae6bdfef259b8ad37e774f8dd0c2b5d","type":"artist","uuid":"dec91027-0c21-425b-aa39-b807dde2bccb"}
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 0xbc27180aac13d9cca1ee94403a4dd4d3c97daa8e977fa1fe07565781ab0393ce. 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/dec91027-0c21-425b-aa39-b807dde2bccb.json and https://artists.proofprofile.net/proofs/artist/dec91027-0c21-425b-aa39-b807dde2bccb.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 0xfe2da76dc403a82a8d25b0363ad0cf3292c21d273653641192b98226e03b5d25. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/JPE641100241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a8082ee22e207040c11c469325ce2efcfc9c1759ce4e6b6e0f495ba1ae624fe. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPE641100243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae121e0a3bfe405847370948487fe758b730e994d04ee6237028beb78cfc00e4. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/JPE641100244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38d550ac61a54051dd201fa8827a1891e7a88be04c3c1260a71be0253187c12. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPE641100247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e496cd0fab1c086a0c742cc66b52cb0054b6d2f767860ca9bba7981a9572c63. 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/JPE641100248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e1c9b3d822127008d00612b9bd02d2bb618fb1b696401a55c38a614fe84582. 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/JPE641100249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54497c7f7ad0f1483151a306517c842545c370f9d75338227def90b35cc42a61. Chain 2 (Bitcoin): anchored in block 957680 (2026-07-12T09:07:22Z), 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/JPE641100226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae412cefbbd1270e73054ff75f5548846fba4733c06e7750fc8f74fcdf0a670. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/JPE641100227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06807caccb8d658299ba22fde53d0261973f127a270f51d93d6d4d0dff3fb67. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:50:10Z), 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/JPE641100228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce22cea63ab0c6ee7618d9907bc36ba046318c4746da2633c42471236988971. Chain 2 (Bitcoin): anchored in block 957690 (2026-07-12T10:16:40Z), 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/JPE641100230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb931035a3ab666005081de36eb0726ce7b1cc14926879708011d3926fdd0c862. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:54:46Z), 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/JPE641100231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be4547647394b592ce0832b4487f94bf7387479cff2e23f2872269b168d4ff7. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:18:52Z), 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/JPE641100232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0582fc8af9819d292c1389b1acfada205b21ca99f32148db68181907e032a1. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/JPE641100233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a770b5a03bb4228d148a153c241513a3dbdff5b0ff280047ee8a010ab180049. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/JPE641100234.
荒井由実 松任谷由実 ベスト２１ クラシックギター編
Best 21 Yumi Arai Yumi Matsutooya with Classic Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5860b1f80d065f72e5fd30983a80130fa938a405c3812fa7a83eb8f2d76bfbb8. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T02:03:04Z), 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/JPE641200399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b984fd2302d6f36ebe9e748fa4be1e8f446d38db3574c8cb0b3522dab3565ba. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/JPE641200400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62399c7e45dbf5380e4d22750d40542bd44a5495b05b41993f71babfdbbe241f. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/JPE641200401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16d58a9a1b6a7490bce49a91022e920c1ff953ea8864cf4046d8c46f5b65371. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPE641200402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b3005961695933cbd3d6f5c1145a96dd96b218eaf61a25b9e2a1130a51581f. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:33:26Z), 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/JPE641200413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2e5caf47506929444707827e37e900492c365b9d048773bcb4c7dd94636c32. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPE641200415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803f9f5a679d653bc1033e7559e10cab2376d2f413c6fbe3c8074775db226713. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/JPE641200417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58b07c50fdbf0d7da31ea29cc35abb712c9aa59b681d2b444ff78b8ba30ebbf2. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/JPE641200418.
Nuovo Cinema Paradiso (Arr. Noriyasu Takeuchi) - From "Cinema Paradiso"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc07f2fcd343d905ee752a233764f1d010d47f869150b884475dc8482e618feb. 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/AUAB01750366.
Prima gioventù (Arr. Noriyasu Takeuchi) - From "Cinema Paradiso"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5966a2bae56d403b5e4bac500cb77f9230f7f85a4174ffd62b0eeeb357d85f48. 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/AUAB01750367.
Tema d’amore (Arr. Noriyasu Takeuchi) - From "Cinema Paradiso"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62972e9f75fe904fdde8117c47756d53b06819ee08390ad7d604ad847fd50299. 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/AUAB01750368.