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 0xa05c34037f486d2626850a0e9482d0b6cec6d777c0dcc79ded1a08e2898e53fc. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5ecb672e-bf75-4d06-9c1f-b19a03cdb4ed.json and https://artists.proofprofile.net/proofs/artist/5ecb672e-bf75-4d06-9c1f-b19a03cdb4ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
魔法騎士レイアース ～選ばれた少女達～ (オリジナルサウンドトラック1)
魔法騎士レイアース ～伝説の騎士～ (オリジナルサウンドトラック2)
God only knows -Secrets of the Goddess- - Extract
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 0x89208b430e13a3f497d66d42953588d138fab86d513bf4194119c4c9f79233a6. 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/JPPI01353240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2784ddcb178b802cad56c2482f470f4e1fd9c0215de1c80c9f17a484a98e21. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPPI01355010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a39fc91b4439804d9b2d983c02ba478ad7ed602148647f891d04950bce22d50. 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/JPPI01355020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c9c01ae331163295b508f71c6d9663aa7a9b0dffc17d6b7cd9559b523a1636. 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/JPPI01355370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78534698e847f89869678b20423bd85b46fe099ae6ffcb06295b42043064546e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPPI01355280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188750a9e6d3fe9136544c9f8085f7921e8d77a4a194257b7a020f648d31c29c. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPPI01252711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2e3b08c8cc7a60117282f261f5765374cfdc3e1ca45fb13a84651725c75e15. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPPI01355070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1027ba0da103708bbd2c74661c17f1a6a6ee7738042a17f7cfef44c66d3b2616. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPPI01355090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46ff6ccd7f5488c18bafe4e5511e1e1066f4d61b7baf77de1275ae5437fbc99. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPPI01252721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ddb03486fe3c5cdde61e5dbcf7ff536b32ba11cfc7b3902970ce0156a2c5f7. 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/JPPI01355170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd55eb21dc5d550cbbd2bd6670cae1033c8a16cf92a9613ff1b88d2bcf6d2f6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPPI01355190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0937f362685df07904d525289ca4ccd16a6cea1c8db90d58bc76ef260ba3d721. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPPI01353271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93610ea6d1809fa616e87029e471d88db57cd39459479263906c5de2ddcdb27. 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/JPPI01353401.
天地創造デザイン部 オリジナル・サウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e31fda057155adb542302ec30718f8b4e5af8728a2b37b6b49197bb9785181. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPI100903465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b3113ebafe270cf38b7483e332c63e4c915b85190af55d6dd1b70c05798f56. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/JPI100903457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacee75d60ba07ea45aa3bd6ebbef6859b16363d8f21e6ac2953b23713f1cbd23. 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/JPB600331939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ef388cf8e1a9610d8ba8c40f8c3f9738fa287cee34ba106f0a40170d318f69. 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/JPI100903447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1abeab9b8056089c5030af0ad7a20210dd7060810b6fa058565a788ba454a36. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/JPB600331950.
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 0x6b85aa33450c69371fec0ad80aa28a3d394256714cba60916086906bf26e725c. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/JPB600331947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa888ea84c118fa2e749934370b43a7eb3b6e7f0e5e2551a3d919075b68e1e702. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/JPB600382621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4b46cad016f182920317e1f6cbaa3d48d028c82d9b1a68dd783c09a0e89a46. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/JPB600382631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d53d475cb4b57feecddea3f547e47592fb5b501e475daac0ca6d9867b70d16. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/JPB600382633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a234d122343c88944a281ed02e69401e9433ebf71857dc25adcce699f1d2541. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/JPB600331943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e2731bd4fab1ce242e4b0fd0bcf516361fa4dcf8193c37962698ccdaf99093. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/JPB600382628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f72955e386f13fdb9ffb16f91b80dbbf8dade861eaa790df17c07d4b57b57aa. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/JPB600331946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d01627c76b90acd029e930298c02852d84573562155db74db9241845a0df55. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/JPI100903449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d745c0d65dd61ac94075df155f28329b4ba7a74db4a7bcf65c86c71217ae24. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/JPI100903462.