is a Japanese boy band formed in 2023 by Lapone Entertainment, a joint venture between Yoshimoto Kogyo and CJ ENM. The group is composed of six members: Taichi Taniguchi, Ayuta Fukuda, Koshin Terao,
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 0x9eed9cc08d3c19881fe31b0c7ace63e7c1578d24424d565c2d822ff8164f8303. 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/639b7740-f8bf-4e10-af93-2d912754e1ee.json and https://artists.proofprofile.net/proofs/artist/639b7740-f8bf-4e10-af93-2d912754e1ee.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 0x963feade47d5a25f94e3676a6919f9f87485767c48e6c13f3979e24575572f31. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/JPN002300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd70e8e83a78167ba27ab9991f5e5a23cac2ad753ed75d1ad49d8f1cef324cb3. 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/JPN002300027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f66955c586b095f1067ee3191be305496aabf8237ec20141ea354839ecd4a68. Chain 2 (Bitcoin): anchored in block 957608 (2026-07-11T21:00:50Z), 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/JPN002300157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f66955c586b095f1067ee3191be305496aabf8237ec20141ea354839ecd4a68. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/JPN002300157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dccd8098aa7c52ba7bc244bc905115e33264af92f8c6e479be1367e2646d707. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/JPN002300161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07dd0ca0d682ba358674e6ae1409768f432fb1ad8e2a72adc6758afea569b799. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/JPN002300327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1471490a51712bb2aaae2b3df92015108f45b3bb4d4d379fb9099e41f811d41b. Chain 2 (Bitcoin): anchored in block 957608 (2026-07-11T21:00:50Z), 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/JPN002300325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9f63e28e2d790608136385b554d377a4f03ce711a0b48a8f5a54f30612b15d. 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/JPN002300326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14042e7b22d2abd586d9f2d42c96bca936718e4010506c695f21be90101e584. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/JPN002300329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb342337ccd06ab8ace198230fc05ce6e74cd4d98f69df9479ff1f3d7deb66bc4. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/JPN002400136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7768b392c30a0b2d8ae898328f8827989507ad21cf3346c4ffc07307a7f308a8. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPN002400148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4612b3b06d85a5308e11a4321873795858f95918fd712720edf479230eb671c9. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JPN002400149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dccd8098aa7c52ba7bc244bc905115e33264af92f8c6e479be1367e2646d707. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/JPN002300161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14042e7b22d2abd586d9f2d42c96bca936718e4010506c695f21be90101e584. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/JPN002300329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfb8ccdf57d86ba98a4a8f1ce5ef3967f2acb16e26ab02b6eb757ca8a512965. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/JPPO02405097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec029111977e8e893f6cb32f062e7f8be9239353e24ef0e393eb1e556edb88c9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPPO02500985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb3356b76a85998785084e4b9d9952fef6a0eca68cb9262b9cc975b98e24068. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:36:08Z), 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/JPPO02500987.