was a Japanese heavy metal band from Osaka, formed in 2008 by guitarist Yoshi and vocalist Rami. After a few member changes, they released their debut EP Dear Slave the following year and soon after
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 0xfd6dbc4b50a370c5581606a975ee80e207b6f369c648250b00f1ba8d936beccf. 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/78f7594b-65af-4eb9-b8de-354b78425ca0.json and https://artists.proofprofile.net/proofs/artist/78f7594b-65af-4eb9-b8de-354b78425ca0.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 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 0xdf5829fecdf5c79f48f69498b181eb36a075f349f9c36ec556b916f10f9cc730. 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/JPZ921012158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb9df1e314652d14147631ff1458f3845b1e6e0506a03249d521bc4df585b30. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/JPZ921012159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb9df1e314652d14147631ff1458f3845b1e6e0506a03249d521bc4df585b30. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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/JPZ921012159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ea5addb0a3dfa45c88935a127fcc01fd2b17fd13fe28fac0fc94e624e349c4. 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/JPZ921110048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bd60a66c0120353ad7e67a0ef94129508ffbc943252c273b88828378efa05e. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/JPZ921110052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ea5addb0a3dfa45c88935a127fcc01fd2b17fd13fe28fac0fc94e624e349c4. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/JPZ921110048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c75c2bbda98cef22b3937cb60dfc7d6aa9bbbe7ba9c4876a024c815716fc34. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/JPH371300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57447513b0e97bb091d041afcbc71d6e257bd83ae6d87f356f04d6bd4e7b8698. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/JPH371500209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5e18869260aa2280c8469867c232f042abdefdba6f49cfdb12d5d56bdb6b08. 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/JPH371500571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5e18869260aa2280c8469867c232f042abdefdba6f49cfdb12d5d56bdb6b08. 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/JPH371500571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6131ac3ed7d8ac4a5cb7999c6932a75bee985ba906f4e488e71ec92c8d1cc12a. 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/JPH371700134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98a867a5c15115ce8c7ab733e69ad26db6b475c465fe7ca962dad6f05c84d8b. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/JPH371700135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcf3abe936cea653f9da2a88fa8d04f797fbabbaf19c7b8b8e08e995b0489df. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), 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/JPH371700136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fbc0c041ab8fe2906ace96856f481c087c58cb8b4694619629c1c445be1d2e. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/JPH371700142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55605aa0836fb09405ed8526dabf6e692248d0ee506f3bb23517ea9c3911c9f. 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/JPH371700342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9fe14c3faf3dc7112b1771d8b20d54b0df42e4bb227bdc0f1243df571cfe61. 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/JPH371700344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5acb63eb86f4e7de0f7f54341f34155d3ea145b37160f10b77f513a0ed57c8. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/JPH371700345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417856684dcce750e5c23dc3ea017f59839c80c1034987454b7fc081542847c9. 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/JPH371700346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7d95048e78d15b03673ec9500561ddf8c21b94f00a611d5627ea45fd98e7dc. 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/JPH371800224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ccfa63031952f285de90c8fe2ef7d5a27d611f496656620d65e573e68966d42. 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/JPH372000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116fda62def55e2eaf0e81aec0f6951a2683d343ec191396e033f83c0364c608. 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/JPH372000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78481367234ad644a650138f15464b7939cc7ba0524252f63cdd81ee3a46a449. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/JPH372000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ddac3f0b4a8c35010a0c11430848ed9444104fc192233de895c740253ca777. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/JPH372000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35cd3cee2d62e78270f23f2b8b2c522d47f0eb3cd3c8da62ce0c392ba3c79b4. 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/JPH372000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9bbcc261c07a5e84d79cd0c1d51a5137e350356eea862cdb22621a4e54346e7. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/JPH372000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ccfa63031952f285de90c8fe2ef7d5a27d611f496656620d65e573e68966d42. 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/JPH372000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bef8e387c4ab5441efd1d4f0d13b1a2563c3371d9c2216f8932042d746518a. 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/JPH372000207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc155732f775d120a390d4ce9955f057ef579220ed33154c350e80bd42191eaac. 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/JPH372000211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc155732f775d120a390d4ce9955f057ef579220ed33154c350e80bd42191eaac. 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/JPH372000211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06bf8da53053865feb6185e6db55bc3a851b771a490ff28aceca85c125bfd558. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/JPH372000206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bef8e387c4ab5441efd1d4f0d13b1a2563c3371d9c2216f8932042d746518a. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/JPH372000207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d73db77fc1856ed525c6fa70b0d070e34072c2a613dbf2c0de2077ff1506709. 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/JPH372000208.