was a Japanese singer and actor. Music career Also known as Sho-Ken, he was the lead singer of The Tempters, which was a blues-rock band connected to the Group Sounds scene, and gained big hits in
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 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 0x48111193fbedabc8e204ae2b79bbd0e3539d71c5c1511c161b5d14fa855d027b. 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/7ed599f4-7152-41d6-b316-07fc4b5c786e.json and https://artists.proofprofile.net/proofs/artist/7ed599f4-7152-41d6-b316-07fc4b5c786e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kenichi Hagiwara Final Live~Forever Shoken Train~ @Motion Blue yokohama
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 0x1c725113901430252fbceaf5fd9899cc63c9d3abc6a21fe0cce94dc09c9dc0f7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPS801851146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ca304056be9cb98d3e6a4201c2f130b9cbebecae1d4ef794ee96c2d1198189. 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/JPS801851149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c51f438088255f621654fd10f57155864d197ea55ace0146b968e30ce1562e8. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/JPS801851151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6790d490073750c9f6c8152fe4ed0a1b3b81c83f3bb8f6441357f36e058a424. 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/JPS801851153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450a207ac8744e858ddd2bb32c7fb13054602e28eb0d060f98cf95bc7c699bb9. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/JPTK08540506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db3db6132965e77f4b304cec3d29336df0355e38583317ded43d753e541d4bf. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/JPTK08540606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9420a356a0dc2166caaa8bc6b1ffbc9543bd0b101e55aebfffbd43db1e8ac3f0. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/JPTK08540505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf374dd24a762a739b7729e0bd5e747a8dbe73c92785629f833f31a4a168b5724. 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/JPWP09406140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ecb95a011286bcfdcd2fdc64b89b7f2f1525ac9959029877cf1ac5f137ebd0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPWP09406150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae89cb568ce2c3e606b9b24cb2b65fe8b6ffa8456a747937ec9366d903aca97e. 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/JPWP09406160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598218e5636eb28c288790f57f2b0ea5edac53fd8bfc3fa18a32485443408365. 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/JPWP09406170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc8a1af7794e27bf5479cd944f9d0391e45e79a66f16a37db38584cbd904096. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPWP09406180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14bfb91eba5e38825ce572665b49abc198fc5649236af86c12f9cab44c48fae. 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/JPWP09406190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce7c7f97acefe903332b8d66ae0e5037ed42cebdb2cb7ac00fd9bf5efb15f75. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/JPWP09406200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf00463777a37d75c6f277b4ab2444d1b7bd59fbc8a6d9edf32b9fbb447bceb5. 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/JPWP09406210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89a37119978e4f3fb7dde585a6a2146547a888fa05cad211a8241bb149be0d31. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/JPWP09406220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b5c438a37540fc3cf052416ccffe29d72db7d0992e18e2a60732b7024f9139. 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/JPWP09406230.