is a Japanese video game composer and musician. Formerly employed by Square Enix, he joined them in 1999 as a synthesizer programmer on Legend of Mana, working for them on several games. In 2002, he
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 0x4fd5843ded7b6ca41a726c6e4fa9683f79d02f07921af48f071dc1b33987c006. 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/90d6919d-f91a-443b-bd0e-4c1285b60240.json and https://artists.proofprofile.net/proofs/artist/90d6919d-f91a-443b-bd0e-4c1285b60240.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
FINAL FANTASY Type-0 HD Original Soundtrack
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 0x49faaae36a231162ff8c8d751eaa5b7dccb99b1d0df9252a92e1809239e1fd34. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:02:09Z), 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/JPA841400770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce71dbc2ed2d389c0cef24ec21e96d1b328d1c4395d8b7b3d54a8af37994a12. 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/JPA841400772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a162e8af785a01f2d49bae8bf504b7da1993e4d4015aa0ca988d53e4af47f7. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:19:50Z), 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/JPA841400773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1abfb354e99f26c92ee3b859c1defaedcef34072415fb40649c9bb9c8d70741. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/JPA841400774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cbf472ad9a993ff33bd85b365cae300a05be370311ca0e477aa0d0461a7c7e3. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T16:11:06Z), 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/JPA841400775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f20f05e2c3f9c3ff1fc601147374ba8e6d4cde45783bb77a9b17e0ce8721de. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPA841400778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01588184000be6e4fec0ff4fa28b088d72acd492b6a0de76cdd842928371267. 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/JPA841400779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x842dafee82b2a3c5903d19e524964418a5567ebc395b139eb0b0dfccd05d32f3. 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/JPA841400782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0bdea5d55958a885bfc3a85e6939223a3c34c1d1a57b02bc1209623d910beb. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:05:30Z), 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/JPA841400783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6b12729429993436db8ea3dc0a46c3d79996455e603e5b573b72b3844cf764. 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/JPA841400792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9525545f9815f106ab67fc964902565517c4442d371c4e878e30c6c8dbbe78fb. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/JPA841400801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f7069f51050462d52bef7d6a77a08491e8b83cb695c4f1e2ffef2517946892. 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/JPA841400802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547d89df3e5ac646b2f5684f1466b3ef64d23a5ea352889e6bb36415cb5a318b. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:35:50Z), 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/JPA841400819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db3b8fab93eb4a665b21a0ef6c1a657b55e42859b447b406c0af3da701bcd4b. 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/JPA841400823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a291fba2083f9c13c87ee2a3be34a436be2daca1c60d826cdd8e5a2cf148c74. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/JPA841400826.
Logical Conclusions (From Final Fantasy Fantasy Type-0-Final Fantasy Agito XIII)
KINGDOM HEARTS - III, II.8, Unchained χ & Union χ [Cross] – (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3607a8bd36ae8ec9d52eae6028d57684a3aa1157a4ce02de335e533f1970950. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USWD12097451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb57df7e27732a53ec733c80d814473cd788a7b3ce6f17c4a913090f1b825800d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWD12097419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8e8dcf54ee0085002f8f20ad9e26899441db790cda3368645cfab1cf9d8d43. 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/USWD12097429.
Succession (Final Fantasy VII Crisis Core)
Final Fantasy VII Guitar Collection, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9173657027e456eabcf6335c4d6a9af14ce045fa6bc71cb5b2b889bc88a8a781. 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/QZES62461028.