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 0x1d172771a244108f03015f3e8c6d68bf5c1fe54b0a4063758021bb25b0bf2086. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29456b3b-ceb5-4cbb-aaa9-537de63f5f3b.json and https://artists.proofprofile.net/proofs/artist/29456b3b-ceb5-4cbb-aaa9-537de63f5f3b.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 0x1c5059eba34d3d18a916bd62f7aadcf5ecbb5a8c16b847d5e2775b55a137885b. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/JPTO08714870.
Kanashimi wa Beat ni Kaete ～ Rise and Shine ～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de473ccc99ec917a189dba5c3e1b922e85e72ddcb94c898205c8f6cd4f9db4c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPPC09104290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de473ccc99ec917a189dba5c3e1b922e85e72ddcb94c898205c8f6cd4f9db4c. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/JPPC09104290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27023acb8679f175baa9f19ccf762adf34ffa76b1bb3c1dea68e21cd2a55dfc6. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:32:59Z), 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/JPPC09205550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad602fd0c34e39f55aab0957e659ec4c1f4ba402487e9819e8e51b96a8b3d8e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPPC09205620.
ベストコレクションシリーズ 尾崎亜美
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070ed7209f9f57d95520e94953fe028d53d20318cd918e91d939a2bdf12ea745. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPPC09329930.
戦う翼 〜Mareeze オフィシャル・チーム・ソング〜
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2286348cde6c6ee5673409ae7e4c3e9ec49c0ee1e51357d1198a37e978ae70a6. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/JPP400900242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632751b4111c33129ddae1e15797b8c463cf793878fed2214f8e4277ecc4e0ad. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPP400900243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca371ecd3a3d24931183b08f74a0de5f9429dedb766d0a6048e90305b9985db1. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPP400900244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62af77d91f6e4c9f525ecf38d4a83af689393b32821cc97476736fbc0b90f8e4. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPP400900246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07599032de579bc5dc8eae0fc7af20ab348ccb1a82ed8570b2342bc0b6cf32b. 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/JPSR00603503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27023acb8679f175baa9f19ccf762adf34ffa76b1bb3c1dea68e21cd2a55dfc6. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/JPPC09205550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02aed7d89dc7cc9386ec84eaeaf860906b3eb214f05d93b31842693b77c24126. 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/JPPC08300530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540db036b97f67bfa70225aa951f8954c0cc2c4ff919bf10c90704d1d8ec11ca. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/JPPC08300590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8331d33e086db9613061296977ff30f89d2c109265a9b64ea99a9593b137c342. 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/JPPC09104210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5a1ef75589c2ac6a1d4b669c9ccf70d0490817b6eb28f0caaa6fc62a7acd85. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/JPPC08501630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5acb3534bede4ad99eacc17cae3c23a64247710ae708b5be12289fba79d29ddf. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:30:14Z), 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/JPPC08300620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bd798db6d134f916b89a4ee18dac35ad8e952d5a6818d4b4ed7195a08453f6. 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/JPPC09205510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3079fe9ef598eed7517608265fa8a706580207ec2ad9695421fe04eba1a06b4e. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/JPPC08100950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a149ecedba6899692a9edb210bd3eaf87cebae0aeeadddb9174ad1c61293d5. 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/JPPC08101020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c31a3b4f6aa0f779e3a9cab532582c50daed236903c0e0f96f40b921a7f7c78. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPPC08001190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a149ecedba6899692a9edb210bd3eaf87cebae0aeeadddb9174ad1c61293d5. 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/JPPC08101020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c31a3b4f6aa0f779e3a9cab532582c50daed236903c0e0f96f40b921a7f7c78. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/JPPC08001190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3079fe9ef598eed7517608265fa8a706580207ec2ad9695421fe04eba1a06b4e. 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/JPPC08100950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb915d327e7f05bc15d7b423e29d391210831ab9df3e2486a962d4a590434cc. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPPC08100960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a12257797786cc2e2238ac8c345d860145c3d0b1f7e64963d76d261b42d557. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPPC08501550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb06c22171532db659daba47aa9f79be020ce21dca79b539fc364f392ddb63d1. 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/JPPC08601770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab629b9aa78af9cc17dbc0ddac8ebf1c41a19cb1dcba0e4bdd7e95db4725df1. 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/JPPC08603210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e76bda307ee4f7d510e18a7bd2a3bd4fff563390b290fa9d1b214bae6f7126. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/JPPC08801700.
Kanashimi wa Beat ni Kaete ～ Rise and Shine ～ (Bonus Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9042263ef0286e9140c15eaaae72dad0dbeed67dfebf50431eebdd56368cada0. 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/JPPC08701980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b4910fc5ec93855032f7cca360697cd42f7121b36137177e8bd36a3e78303a3. 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/JPPC08801660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba962b63340539ce2bf47b5e6a6d2bf24c861ede1b1fa6604527db0b0e13968. 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/JPCR01709080.
尾崎亜美 45th Anniversary Concert ～Bon appetit～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e76bda307ee4f7d510e18a7bd2a3bd4fff563390b290fa9d1b214bae6f7126. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:55:22Z), 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/JPPC08801700.
TWIN SONGs Ami Ozaki Works (Self-Cover Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01429c2511c77b4041bfa91ec286b78317d9ca694c56c7bb62a185bc3db0aa0e. 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/JPTO09226090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01429c2511c77b4041bfa91ec286b78317d9ca694c56c7bb62a185bc3db0aa0e. 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/JPTO09226090.