, typeset as SAKEROCK, was an instrumental Japanese band. Led by Gen Hoshino, the group was formed in 2000 by graduates of a high school in Hannō, Saitama. The band was named after a Martin Denny son
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 0xfaba6aef61dbfa50e90f8a3d644ac206b6773eff1320f6f338fc2f2b9377d0af. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a4b53f3-c593-4a98-a8e1-9eb144242a26.json and https://artists.proofprofile.net/proofs/artist/7a4b53f3-c593-4a98-a8e1-9eb144242a26.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 0xa04b375ef120fbd94f910944ccba51c04676548047a99f5f1077d63dfeb9b2b7. 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/JPJ902012240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3089fbd086b0ad4ca6b2203a5a62347e824c924fc2e5b26b4f862245b62a7c. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/JPJ902012250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e76283f8e0a5af6aa74f1b0e3668bc7e56d9fdfb6a76dd989cf42ccefcc398. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPJ902012260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d9819d566011550cb7a095cb1867d8ad08b38cb2fbcff374e1b5a0a118b3a5. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:06:50Z), 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/JPJ902011850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ec2bf397fde8238fa8d9388d5af5a3b12fcaa14afab76d01b1b4ee68a9f1aa. 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/JPJ902011840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7a157e9ebe558b6ee118f2ae9c0ee55040de57fcc1b70ba73abca53ba220dd4. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/JPJ902012020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc47a455f84b42e2c9efd0b48b3f7d404f65a14093d77905f2d4cff0a2ed4d67. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:06:39Z), 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/JPJ902012030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92184081a4949d6e8956dc8d36ce2d22b856da64b4c7a919a029baea74f608df. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/JPJ902012050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdddc0a5638d4811df5853161af7c70629d6fb9f4ca3fb87f8c293019aa07eb6. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/JPJ902011870.
『キャッチボール屋』オリジナルサウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d4101efd2b6cb7730f7a7e02389361f5aaaade7303188ddfca89753d4f2520. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/JPJ902012190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc7b43e5432d5453bebebf0ec419f196a11becef880e412fe08685867e609ef. 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/JPJ902011880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3404a435cf658ad424ec7c218c7a69a0a48be3b34163f19294ee6ffa063b38b4. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/JPJ900705780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c95bdb584714ae2768ddfd4b958b0b37ba3265438610ef822d4f2446dfab2c6. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:58:18Z), 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/JPJ900705790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805e276f85b3cbee29756c94c56e8c4d651c50b250ce84d6ac32e3891166a45e. 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/JPJ900705840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9fa38dc4439c568b86021488c1a505b115936325438388ff0920264a9086c3. 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/JPJ900705850.
おじいさん先生 ～オリジナルサウンドトラック～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45eca6761e7f97336d9f9ddc8a8fb25d01271d20166e14ec82f64d931a03bca1. 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/JPJ900709080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eee97b814708417679cc18c4a9a09d15b9075408d3113cca027b8dbbfa8bd89. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:44:24Z), 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/JPJ900709090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81b6bf3f97a3f3580bcaab5bb10bc763d7766114358fe45dc09390ad9a1cad0. 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/JPJ900709110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027cdbc5e70036c372196e9b5ce60c299e38f507116221c092c016b3dac19be2. 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/JPJ900709120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699980d3d4bbe6034bc8005fde7df642778d334b069cdf1fc73fa41ad64e2f91. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/JPJ900709130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02227e26e3187a166ff46f889e498ba71c9476475835748227abb7ebbc322d3. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/JPJ900709140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210cd45ac0d48b36b5f1cc2b41bb8394f3b774c7cb25c7c60421472fe8b108ac. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/JPJ900810280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad024c812a695179e2da86499061339122aeedcb737f772274cdb3aad1cc1b9a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPJ900810290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76292d467b6e1e5faadfb6821b28581bfc4569f309252bc39106b14900e07eae. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPJ900810320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4c58860f03d699d4f8b021d96b9ea4dd895069fb361dc7d81b830ab549f098. 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/JPJ900810330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af82b734dd506d721414d23737055b1d9de9308e03123dc55369f442890cac9. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-20T00:20:05Z), 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/JPJ900810370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc887faa088ca81ab853d974b4a07d434bac6098827dad0e7168a3649e4775ba. 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/JPJ901013420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f838af46d600917500f8031b7a0140f02c33a547d72d37f6dce1013b6a4258. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:36:18Z), 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/JPJ901013430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5792259c1f32bad892ae6916a1e5569fe8f5b51c6c050b3ef69d4fbdf13df940. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/JPJ901013440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50bcac2b0ef94ebd7de3df2b5b6aaac7de10cbe3cbf6632758932496159472d4. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/JPJ901013450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38e011ac8fa828a9fae2556575c153dbb375f91ea7dc5f7f5be5099ad2a7246. 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/JPJ901013460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b3470755fcd5752e3654eeb859e1ba26dcf8e1d710220a4cc0863311fd7283. 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/JPJ901013490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb245382d97d0ef3e9d2653ac15404df43e595e19e58c4c87b25bab84931277a3. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/JPJ902012120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a715ca92155506cb19d4547d8be921ea18ac3e7920f02d2c53fdfbfe11815c. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:50:49Z), 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/JPJ902012140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbcde4098074ffcf836c89635697301f75865d9ff8cc46aeecec6a12eda0252a. 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/JPJ902012150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb86e6649191af1d895dda0a6f6bf3e12774555754272f4b05121c960bb4d5d. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/JPJ902012160.