, known professionally as is a Japanese singer and actor. He is most known in the West for his contributions to the Katamari Damacy soundtracks, performing the theme songs of Nerima Daikon Brothers a
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 0xbf0210ca6e9b00f2be712c6b1fdee38ce5e0391cf98a4d62ec39e03c3fa285b1. 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/2f43a7e9-c738-431a-a54f-4cd51d7ba119.json and https://artists.proofprofile.net/proofs/artist/2f43a7e9-c738-431a-a54f-4cd51d7ba119.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 0x1b896a1137b460121ba08192459c14fda05ffa071aacc28606527c575cd4ec21. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/JPTO08830930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de73f202f229474fa91ae2a09865858293fa5e42a556ab649e089f6dd20bc73. 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/JPVI08207830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd404e800c6360100490ba637b325ab2818681aa464442ea19c20203025fc887b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPVI07906520.
エッセンシャル・ベスト 松崎しげる
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd404e800c6360100490ba637b325ab2818681aa464442ea19c20203025fc887b. 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/JPVI07906520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc3ba4708b1af5f82deafcafad9f5c0ba9d797706a54b992760d7331ae6ff0d. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:40:06Z), 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/JPS101500070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf49859b2d09bbb1dd0118bd93925ce6ef5a424d46b3033e1d5dde1ee486492. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:33:10Z), 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/JPS101600101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ebbabbf19108ea74e9eb00a3f9c267449376d6c3804c1f86ae6bec2614f0b6. 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/JPS101800059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9934d681c62f4231f1240aba011c9114aedf8dfc427ffca5851e19c760043c2a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/JPS100900051.
50 years of activity Album「1/2世紀～Self Selection～」 -mini-
50 years of activity Album「1/2世紀～Self Selection～」 -mini- (selected edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b65f3ce8253a8f37aa0be892d1b3c0452e559454cded2d80ef7520d689fd06. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/JPE300300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35777f831967b21186ab16431a0d9fac7e45b696577ed7820029a6991e25135f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPH800000440.
We Love Katamari Original Soundtrack -Katamari wa Damacy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a23d0d8ac55e67cfb9089116ad97f56de39e3dff7f2fdb170302fdd16688ab. 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/JPCO00521830.