is a Japanese band formed by Kazutoshi Sakurai and Takeshi Kobayashi.TOY'S FACTORY – ENGLISH Retrieved 2010-08-22. Members Kazutoshi Sakurai (樱井和寿) – vocal, guitar Takeshi Kobayashi (小林武史) – ke
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 0x80aec392141a847c4ea4c96ea3650509888d41b4f33d1aff095f0366cb3566f5. 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/530e28c6-d5fd-42bc-be20-e406ffa9e072.json and https://artists.proofprofile.net/proofs/artist/530e28c6-d5fd-42bc-be20-e406ffa9e072.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
トーキョー シティーヒエラルキー
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 0xf6ecb07d4ebd2dd9f1473271178b1b992487a7dc0f7b162174080237beb94644. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/JPTF00408103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e6c2877d47a3cdb5d3f422571d450dd25007d97e37597126e125c5f7b58c82. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/JPTF00408104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b7933b5c784da0c917b26bf334741b46c4d1d2d988053f610252143890d81b. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/JPTF00408105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa17244c8b5dac462b2679df064741e24c7240f1919c30c378d0c554600aa227. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/JPTF00408106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4b00a016479f9b9bbc67b98217681e7f2317f7c944b7e411c0a260aace11d1. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/JPTF00408109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebcb3aa56d45f915c22a875a9a27994446bfed56dc7f4168f0f2ecffa3e78305. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/JPTF00408111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f155be37c166b49e425d0bcb713c16800ac3a915af8b0f9ce88ac3aed121d8c. 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/JPTF00602603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10dde3fe65e82458e35a754e32f1ddefaf0c9906351590792de281f9eedbcfb3. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/JPTF00710103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a527163c1683f74bebaf6c190c132dc664e94d62f95cb7e02833b89be1e8953. 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/JPTF00710104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32efccecc1e57ab2d8af0b01bab14d4f277eae527d2c20b99786704427fd9c90. 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/JPTF00710105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53be1e2dc6be18a51d505ddb72146adf3b95a154f94125f6397ff9b2051fec3. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/JPTF00710106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526e9d6bb3fe7b894694b2f909f9c0bffb0cfd9fd8bd9e8235613c91f48f9419. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/JPTF00710108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34b391daf420ba54afe9db0cbf9baa141fc0bae21c42763bf957ace9b52e9e8. 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/JPTF01004501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9642a84e3a8fce6981b862a88c455a329c6147dc68e41f6ca3e0a26822f8f9a. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/JPTF01004502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8692d1da24f12fa579360948c7dafe9c084d21e11077f00f6620a5b2d060a0d. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/JPTF01004505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcabae32e32d421fab3ff51b126ddf39f89518200973c5946a8c90d771a5ba7c7. 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/JPTF01004507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31fab21496a1f0acae160b62e1878ca6ff1cba16718a9cf55805575f7c9a9e29. 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/JPTF01004510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd140f916bfc9dd49a7f647d90f47500eff0c3f4eb6e3732f35bb136ad7e8ca18. 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/JPTF01611801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7cf529609291ee2e915c13ff9a57db890beb88115eb6bb2a7d2d6774681868. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPTF02122401.
歌うたいのバラッド - ap bank fes '11 Fund for Japan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce4003cd1252b4f2e2614dd638900d32f75d5ec2b3fa2985f0308f1fda76f2c. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/JPTF02122402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b56d194af5bec0ec24502258ad6e5a6cf6f537578a37b0b2dafe98a34bac534. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/JPTF02122304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe301923f38547923ea35aee056a5f4fdb861d2a1bd90927f859e2aaac0b009d5. 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/JPTF02122305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5d66e20bc136c1eb896ba30262dd3d25c1c8d00d3015b102650663fb0c4352. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/JPTF02122405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8b8738338f7c282bf1b40b13f92200aa2b520f6fd5f361971b710e69fcd989. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/JPTF02122406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598e7baf39731ff6ae1d398d4d57a06a90e7612c76b505382de235cab6beb46f. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/JPTF02122306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd97b5d7ff6034731f452c2d4856b7d436bfdc51bafd9a5aab215a43570a464b. 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/JPTF02122307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96532e432dd4f29235cd723aac305ff3ae073e73255da2e7d1abb6e03f42507e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/JPTF02122407.
Drifter - Reborn-Art Festival 2017 × ap bank fes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9206b98a291cd54b380ae82032cfc3f2300568d3a378045620e9740b4376f3. 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/JPTF02122408.
Reborn - Reborn-Art Festival 2017 × ap bank fes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e68563c773a9058210b925b4d9386e924d8e07520ddd5ea5db2f37bd1f4a176. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/JPTF02122409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29d70ba72f1aa5b6087004580e583913d3b2355db77187ec9c060dd3e8c00d0. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPTF02122410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0601ba72dc404f7c5cf30fa51748e8d86cd669962ce0f93ef40cdc15c20b5e. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/JPTF02122311.
終わりのない歌 - ap bank fes '12 Fund for Japan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530c87c93fe3179d810be7cf6cb49c72f3e9753bb9578a46f602b5ba19a58413. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/JPTF02122411.
ぼくらが旅に出る理由 - ap bank fes '12 Fund for Japan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71b865aaae534110a335c2d7fc40397452a9cedf0bf08159d280e5877137827. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/JPTF02122412.