The were a people of ancient Japan believed to have lived along the Yoshino River in Nara Prefecture. They were mentioned in the Kojiki and Nihon Shoki. The name was also used for a population living
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 0x8d3b7375770e55b7709b77d2098301a11c6f2e46051e9b98d03ec4f6fd7488e2. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0636ba6-00e0-4263-a4b3-bf6cc065ea28.json and https://artists.proofprofile.net/proofs/artist/d0636ba6-00e0-4263-a4b3-bf6cc065ea28.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ムーンライト (アルバム・ヴァージョン)
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 0x0d66b9c9456e055353a591c2b4eff7529d777905452c309c2c138b92840f6bba. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPN000300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ff6a6674d8c2d5d02105dceca589b89fab3957db5eb40461f126ff7e22da0a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPN000300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37966c2ecb68b047be26c14f59e525aa4934ac0c3b6a5e684ff0329aebe9666e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPN000300018.
サンタになれなかった夜~くずなクリスマス~
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f44a277be83f241f855cd54b805d06016c0bad9b4d820552d523e62edf3523e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPN000300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e732733c036d1cb2381d05e1d9088e2a3e39259b8db55a00e3e2007d52702f. 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/JPN000300022.
生きてることってすばらしい (くずLIVE2002ライブ録音(2002年10月28日Zepp Tokyo))
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3816fa63c1e51386a83d448097d50619c5aaa5fe7e3f3372227fb84e3d487eb4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPN000300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22d03a804978100f2b1e414e53b43477e672da573c743f25861ea54bbc2288b. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/JPN000300019.
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 0xe3832a706bc7e621604ffaaeb5f0bb277e28c6b717fcf395fe7f3465edfd0a6b. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/JPN000300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a2093a90568f7683c3fc41aba536d0cf648d2974ebe0f4130e25fb08462b38. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/JPN000300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dd5d3e629b4d62ef442bf887574cbc175f39e298481fef162f8d8407e19b81e. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/JPN000300024.
その手で夢をつかみとれ!/みんなひとりで生きてない!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926052878a9c9a0a0875e2eb57ccd637cda58c9e759c162b56f41de79cc579bf. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPN000500354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f39effd533896f49eec3255e4a8d42ec07b945464f9e4e594ae9801e3d7fef. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/JPN000500355.