was a Japanese all-female heavy metal band from Tokyo, formed in 2009 by four former members of Destrose. It consists of vocalist Eye, drummer Mari, guitarist Saki and bassist Rio since 2012. After r
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 0x0dd1e167f532f639b1334c5e162ea01fe750b9b41b881f1c61baafb91f86a04a. 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/f6ea6fd5-f582-40f2-9ac3-30069f48da16.json and https://artists.proofprofile.net/proofs/artist/f6ea6fd5-f582-40f2-9ac3-30069f48da16.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 0x7575cd34cc3eac6648b49156de02c88cfde1b523092b2d2bed0dab5a7cb72512. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/JPZ922204965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a260f7570b17292841e6e2205f2a0c2d1173d1fa455a0e03a7905721e84d3b. 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/JPZ921306557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673361ab4c3eca5d8eb65d04f4670d30c1592f674fa33c71dd27164deae6ba14. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/JPCO01417870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3b54bdc27683cea8fe9576c29549976896588e123606e27becd8f4ae18dae6. 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/JPCO01417880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30de53b4dbf4cc2a8f8a90b7187b6296f73333519ccde6014540259c0163263. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/JPCO01417890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f803190dc6f72df785dcc68b79fdbafa3c1baf539f869846db3ae1c3f36061. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/JPCO01417900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ee57a55819565c67e80edfc5a1be22e3b5116194b8a3bf45c3a78acc443a7f. 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/JPCO01417920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095407710f38ac435a22cfa1cc0be46c25e3cbabf1147fd5c9979fbcd2412483. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/JPVI01530400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095407710f38ac435a22cfa1cc0be46c25e3cbabf1147fd5c9979fbcd2412483. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/JPVI01530400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ed9f67ab399ca94a9036a7017e5a360b613ca3aed23cfa3fad2c10cfaa2461. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/JPVI01629810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd7c8e60628b4d28c184d0bc1fea72eb53c342ad1e9ba835401cca089be4603. 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/JPVI01629870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ed9f67ab399ca94a9036a7017e5a360b613ca3aed23cfa3fad2c10cfaa2461. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/JPVI01629810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbccd91d5221308a8ed55777d2efea2570c0b42a5d77cf98dc717b9ab360e7f70. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/JPVI01629850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd7c8e60628b4d28c184d0bc1fea72eb53c342ad1e9ba835401cca089be4603. 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/JPVI01629870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8833338781ec8ddfd8e4078bdbe2b049a864066802c1c70373e3049383c87852. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/ITN581700408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9937e12a578846ed39200f03d1bc378929e2e58b43be255a35c36dfccb457cc3. 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/ITN581700414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883c3be067d23d6bbb5d9f28d72f417ea6f2cdac511c2082f36b8c546428baae. 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/ITN581700564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad38c91e99082c68320442f4760a11ae35343a5f31c52bf2804158550aa8f91d. 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/JPTK01802080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8bb78a75ecbfb1b2c5467a89910c71b90810730dcb60c692bb5de5b438c6f9. 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/JPTK02012830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b1777762273bc24e82ebd1af66291958b8f3eda554078601f07aa881413645. 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/JPTK02012870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e4e836f7d396db4cbf189abe3c4226095b87445a9fbbf8e128f5878a8a9aa5. 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/JPTK02012910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b1777762273bc24e82ebd1af66291958b8f3eda554078601f07aa881413645. 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/JPTK02012870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e4e836f7d396db4cbf189abe3c4226095b87445a9fbbf8e128f5878a8a9aa5. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/JPTK02012910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d301bf50e6cbdf23dda10c2f2c8f4f458ecfa19fb5c28b8718f78145fe0137. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/JPTK02103050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d301bf50e6cbdf23dda10c2f2c8f4f458ecfa19fb5c28b8718f78145fe0137. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/JPTK02103050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d301bf50e6cbdf23dda10c2f2c8f4f458ecfa19fb5c28b8718f78145fe0137. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/JPTK02103050.