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 0xd158827dd145e65428e88c2d9f5f95b264ab64cf320613c2c540e3a778bbac9c. 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/3949360c-3e21-488a-acdb-114b588d21c5.json and https://artists.proofprofile.net/proofs/artist/3949360c-3e21-488a-acdb-114b588d21c5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
プロジェクトセカイ カラフルステージ！ feat. 初音ミク Original Soundtrack Vol.1
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 0x20575ff9891981bbd80e7b68fe0d5cef764fab44af705e770234987111ae1d23. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/JPX302135700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c617296b8d7cfe6373fa45878cd1f0a579f79077df470d20135b73f1eda718. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPX302135710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9882cd1697634649cabdcc0fab68a7caae766a1470d790b15711d493e0fb2ed2. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPX302135720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ecaea72b7b414d6af3284712f33afd30d9e7d9a1efd26e5e23a16e97fd54fa. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/JPX302135730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e495862ef7d21ed510542854e259427b5803f73187412a9b85737305b1193d1. 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/JPX302135740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a2def9b176ae6d610e53fd4f6900eee7778633652acc40477d7e45098d0507. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:36:51Z), 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/JPX302135750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4afd93d86a9c4a6572203c929ae058d9240db59f5b24660902e7020976e76e4. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/JPX302135760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979ebca17fa5241d9c05c9525feb6daa228e973983c48e6cf57351c976d9c27f. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:57:16Z), 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/JPX302135810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06dfdae2489c8ebe7a39ad42582fb7c5917278bc6d27bf15091e679c8f5bd3ef. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/JPX302135840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633ef03dd4bc92393502e3e147e3f7937fb3a3fa9e49a25730fcbc3ecd4f7273. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:33:08Z), 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/JPX302135860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c228bb0a5ed58c88d90202854abcd1a969f2ab2f88f07ebbfe9b5350292fe0. 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/JPX302135870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9ce609f7038cbab5ea2d6eea2773cc7f1718db541ccb14613b5bb8b001a04a. 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/JPX302135880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370d4d5c10021dfb96fb30e28fc4bece8d9725fe9690f356c19a2f36e8cc96d5. 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/JPX302135890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9add50e054e6744da5f78e9ca42a12a469abf45f898f4fab55f25b58ee4d1eba. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPX302135900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf981b2337db05baf309d4a72ab03dae28e87ad8d2760671cf0a583a71fef98ec. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPX302135940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129b17819b3d295682c4e1a6452995186a066376d85662a0ee35b9472dea8066. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/JPX302135960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fafaab4f21bc600a27cd6135c8bf614a1af7f297d8db3b1fd8d791fb220ace5. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/JPX302135990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf83b49a0d5962903233a201d268779a4cdd6797160a58b6f89c6b94df9cf370. 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/JPX302136000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a111868c9af6dded8f650343063f0c1c99b6ab8c70529f84b0eb14c7f992f7c. 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/JPX302136070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1216ef1bb642b192bf0c7255ff80359a2b1edd462b49fcc8c29eac75c8a2b8db. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/JPX302136080.
プロジェクトセカイ カラフルステージ！ feat. 初音ミク Original Soundtrack Vol.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873b06cf3394690865528e2ab3dfc76ad866ac65141a515e1ab80a67a76a3380. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/JPX302248430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5ed472890c5855ad76626702a3bc1bc69d4fcd9a866cf8aa1641596f7bf7ef. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/JPX302248440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e91ae6208cc10443669258e61cf219a5f8e7339efce261e2f2486f94d802034. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPX302248460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec40bb5e1b839a981ac2819960f2aabac475f7f11564d8adbe338fcbb41726c7. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:01:07Z), 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/JPX302248540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4afe862c6cb2f1208ff2394c488ed943c4f6044f7da094dfaa38ed8ce29c3c5. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/JPX302248600.
チョコレートファクトリーは大忙し
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca4817f323f67c20bd4413831375c15882ca58d4599fa80de5dcdf67cc9c988. 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/JPX302248690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206e62397cad49df4bd752be51e4d8c717940b54163bc07ed319fe1d0a77d28a. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/JPX302248720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c15652d2fbbf08214a9583c66ab85cf403a1cee27d04b3cfa18cf0e2325a355. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPX302248760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25b3d586f2243dc10e413211f7207033989211508968b291278bb689ba18bfa. 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/JPX302248790.
プロジェクトセカイ カラフルステージ！ feat. 初音ミク Original Soundtrack Vol.3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473480e3ada844ae6684f0be3d4d4513d060f9916bd5d07cd3ddc5b4b8c66754. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/JPX302474180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8812b285306f8f26e52c9fe31ce34452dfa908f3540fc1ab1dd98554febd828. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPX302474200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d64160b9fc3a9eed9210e0bbef95e4cdaf2e0b86dd2a36cfaf66f8e3e785f9. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPX302474220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ef4871c7043f5a8528c9146579dc847072085b96cb19e1b54db34b74671597. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/JPX302474230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddfeecb54daaee76fbe7470a9df028dec32b712d0904956b34623d00d841435. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/JPX302474240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1770a513c36bfc63e58a6e38bde670649317fde50b5c047bcb853d0c42782fe6. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T02:01:34Z), 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/JPX302474250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb82a286785b14363a33f29f51c87d11dad4a4becab43608e89685319b8de4df. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/JPX302474270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f417a8da5828ba6e00bead224cb2b078d48bd3526825b2781002117a7c2b3db. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPX302474290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca889c6552687cec5aaf89494cb35c8f6ddaed3b04e7684e1944618da6eba31e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPX302474340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df0733bb1e6e5e9d83b82b1839ac8880681527e3f9383167e508c0bc1b7f7fc. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPX302474370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6183a408a22ff42baf327e418802ed0affcb3bb6b1a1c92e746b444d2b5ee1e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPX302474390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d6ff95a694cb010868444095b3e74d2d4eb075c71de41b0e223a12fda064b7b. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:49:45Z), 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/JPX302474420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeff77abeeb52b447343a3d55fb595ab9dfd99c110e10329c9161d5096bf9ad7. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:48:27Z), 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/JPX302474500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8aafcc1c56418d718e6013f5f9f0b3f45e5ab39bf0896b0bfa5b66779d305d9. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/JPX302474510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0ded0d9e1260eed338744d162cf296a7f390a416a445a07cafc9763840a2ca. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/JPX302474520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd417619cc292adee79ddfcae1491bfdaf8a4609d3d941ef7010ced67d1604d60. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:45:40Z), 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/JPX302474530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa468c6ee21bee1bae3541bb82a162ed97dce6b34b1622bf90da7e4a95318df23. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:34:42Z), 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/JPX302474540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2d00a20f6a2edc75f5fa401483be3d68405914b48f547d8c4f4cb0aa44c2a80. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPX302474550.
プロジェクトセカイ カラフルステージ！ feat. 初音ミク Original Soundtrack Vol.4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9e58971a9ab2a2d281f06e7b0c59f44c43455695d23a1c4a008f488a88e0b8. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:24:01Z), 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/JPX302474580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d43bc8ac9f7f0a2788aecd7b2ff078be28e7bc89d426e78c5539941df0fa40. 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/JPX302474590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e26ef3153fe579ad0974c28767ce5d4319a34a8e65910da73e5396182666950. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPX302474680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48e4c832de942ec229af91f678c61c0b040998c623c8ae26c2d203a92aafbfd. 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/JPX302474810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b92bad6943d2de9a289b13b169af9420abfdbc030a13a74c4196cba1dd4b72. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JPX302474820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92deaa7f51fc849f48f0ca77836de32bc312feeac617a24979860f8449b76eda. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:33:43Z), 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/JPX302474830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76f6d080455e9e59899cdfba67d304759af6615f006e8c00c717f8cc1293af2. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/JPX302474850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e957e143b03ddfe39a2b64b8b4b184b5b9b190cb043c873e27faef10abd4fe. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/JPX302474880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb488972490f183ed1a4da64e37f5c6df7f79fa6cadbad6e288d1ccf8df290ffc. 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/JPX302474910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d66a1be24b06f400fd75ca7dcfba0dcbe3de063b6cbebc84d906a2c057db3f5. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JPX302474930.