is a Japanese jazz musician and composer. Honda's father was a jazz critic, whose name was also Toshiyuki Honda. As a jazz musician, he learned flute and saxophone, and worked in the late 1970s with
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 0x73275645db4d9f3584af4573bb49568405fc61b6947ddc771d12b7df16551f4a. 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/db3f32d1-31fd-45d3-899d-9a2eeee0e4f2.json and https://artists.proofprofile.net/proofs/artist/db3f32d1-31fd-45d3-899d-9a2eeee0e4f2.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 0xdeeffa74154ce1b6f002ba699d0cf1d0ae5d4d3602feda7be5e1d72845c8baf8. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPKI07971799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84709745851ba5b970b3e32c6cb28349d1ab40c48d7fe3183371422fd9cc3cc3. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:22:20Z), 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/JPKI08076522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d800b622338eb51855076d18c9d3f7fd3b50b507df232fe1155d7127df6626. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/JPKI08177882.
マルサの女 (オリジナル・サウンドトラック)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5735a11b070364c7fda4f3c9dab3d76f31f4b14558266c903cbce66e3f9b1dc. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPTO08711760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ba7c5041ff1e46dbb7eb5070f65f6ab5ed0a2033f3a334d20bb3c9830a9a1e. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:27:57Z), 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/JPTO08917680.
Metropolis (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993071e95145464c2be3df3c1c016a43bde6178ef08f6ddc1c648ed12a6e5b89. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPKI00108500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ded71ff1ff52e324274ae97ca7757ebb21b25506151d391405631c9bd86521. 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/JPKI00108510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eee40cfd62e249e0b286fe64ba6c422c66f311ff5de1fdb0f37f47debc1d69a. Chain 2 (Bitcoin): anchored in block 957554 (2026-07-11T10:39:45Z), 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/JPKI00108540.
There'll Never Be Good-Bye - The Theme of Metropolis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c441c7cb6b37509258bba6f2141022dddd563d848de0084b5f2c4c2e3e90849. Chain 2 (Bitcoin): anchored in block 957573 (2026-07-11T13:43:13Z), 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/JPKI00105200.
ＴＢＳドラマ『刑事★イチロー』サウンドトラック
映画「築地魚河岸三代目」（オリジナル・サウンドトラック）
Yona Yona Penguin, la légende de l'oiseau sans aile
Yona, la légende de l'oiseau sans aile (Bande originale de Rintaro) [Yona Yona Penguin]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb91a4afa425c2b799484d56d0efcb19805d9a84595003c22376750704ba75c0. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPKI01416968.
Fuji TV Kei Drama "Kazoku Game" Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d291c7b5247051eec79b777c3c9dca4e73bfd1850e21d37116bfca4aea1513. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/JPZ921903675.
フジテレビ系ドラマ「新宿野戦病院」オリジナルサウンドトラック
「SHINJUKU FIELD HOSPITAL」Original Soundtrack
DJ Notoya Presents Funk Tide - Tokyo Jazz Funk From Electric Bird 1978-87
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d67e30c86fba26f7e94fef5d2b003b36b5fd85ffe501c55d5e73e3fa7aabc6. 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/JPKI07973606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3467b62245bbb15c3a9a9927fb0e329eea7f4db33fc9bb54a9f9746e6a7c4754. 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/GBLWD0803904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3236f0bbeca9c043b4170ed960b3f7fa969661c5c6c2a4d3e2fa3e8c5c54f2b. 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/GBLWD0803905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d7afc6470029c8c007d0b1298a02d69d5bbcde12148ba36fc2c999e3686a1d3. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBLWD0803903.
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