, codenamed "CV03", is a Vocaloid software developed by Crypton Future Media, released on January 30, 2009 and headquartered in Sapporo, Japan. Its official moe anthropomorphism is a 20-year-old woman
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 0x3cef4bf0ccd91e85815100785575dbd576892dd0a3d572b7bac6d92c74e5b236. 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/1be7a51c-6c7c-4a6f-aec7-88f7ada5d083.json and https://artists.proofprofile.net/proofs/artist/1be7a51c-6c7c-4a6f-aec7-88f7ada5d083.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 0x94054d0eae303a75feaa9400ae17ef2210c5a60f6b11a74657e2c30866127e3b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JP92Q2400041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56898f75f0101b7ea41e72de2c940bac6c9948dbf3601012e35fbe27557ec5a3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JP92Q2301649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c77b0ea727954350908c92664a1303aede3fa987f2b05f88e66ac1fc6e9e13. 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/USL4Q2310520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ce758859997c307d4be57146ab108697a54bc8f47cb9441f6dc5596824deb9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JP92Q2301679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a0193323bf9637a0489dde74f8927f4a9442672352c703697a8800a7e582de. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JP92Q2301681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa492eda3d5b165cac4c0e8a79931ce7a446e37644abd92ab547149e6ece41906. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JP92Q2301683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90b88d725e6575eae57b1928cb0138544fa47b1939e26f32c3591266e0360c0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JP92Q2301684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a6556999d492407c2e8aff64ec2e3ebe2686d39938664fd2bd79ea085108713. 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/JP92Q2301685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb11f47cb578bcd0f153e09f4f41de354c058d96c965a8a40fc6dabce0101cd0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JP92Q2301686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bdb2ecd04ce20bc5d8289f628ba04bef9d48c2ce281cd80551864a070fb081b. 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/JP92Q2301687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e10be5747e1a16a8ed12a2af64da83716a6b9b529419e5e5b987eee2e30474. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JP92Q2301407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce47af26a929745d5b8cfdc425708dafa4aa2ea7d10dabd411d511a6716a0a9a. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USE831507620.
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 0x3da28da967aed1a8b66ca8a04a2568bcf9b43d67dda62fa3c485e8edbb020fbb. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USE831507623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eabf92189e347683af2dc7dc706b8cf80506ab821b67bee135240458760b46b. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USL4Q2310518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbe049c0b6688fe891fdffd5fe9e7b38fb3f2a92f6fc2983577c2d0ca944288. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/JP92Q2301682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2471c3c03b1b175edda055346679a40a898fc4d10b774fb34463795e77e96f3. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/JP92Q2301688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd72b278de7f4e9254625ad3d27f11cd5ac97c971c1b6fae05953ce435fe3edf. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/JP92Q2301690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097cd5caa114006126423cb9d3bbf342165b30085300df1138491fe643cf4b33. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/JP92Q2301691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34af3d029f9490164ee7ead0a8875bea058e824ae4542c172a062b1d2166c56b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/JP92Q2301404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c0d56add4993a2e1629f71a4dbcc505d6c05c717d7f9a4a8581052d31d6ac8. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/JP92Q2301406.