is a Japanese actor and musician from Toyohashi, Aichi, Japan. His real name is . Career In 1974, he joined Shintaro Katsu's production company and made his debut with the television series Zatoic
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 0x0b1d6f74459c4f830bd3e6beeafb85268fad962ed128f1466c49cae3c08790bb. 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/9ed07e05-20fc-4de8-95c6-1a69aefb9c12.json and https://artists.proofprofile.net/proofs/artist/9ed07e05-20fc-4de8-95c6-1a69aefb9c12.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x2ddf58555ba5a5866d004ea9b3fa32440dd0d2fbbcdfb6a8741df8acf820114b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI00408150 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7585f5ddbe6cd950200a36cd81f97fb8358a225618eda8bdb6b2ce0c84debeff. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI00408120 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ddf58555ba5a5866d004ea9b3fa32440dd0d2fbbcdfb6a8741df8acf820114b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI00408150 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fcdb0fce27bcf057deb533913575a9013fddb3b80008eab5eb6e10bb692867f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI00512529 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcdf973e221e0a70d859276144a64c918ac6816bb0da5ed6ccd1f782941246b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB600740201 — a six-check JSON result.
手をつなごう ~マツケン×仮面ライダーサンバ~
マツケン・マハラジャ／マツケン・カレー
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c7f07963ab290acf056911260a4bcfe1a8379b19c73a3565abca339dd4f853. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPS801180145 — a six-check JSON result.
マツケンサンバ4／マツケンの大繁盛
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7dbf56a44da1482d0463264b948cd89e8808afbf622db488f460c247a8f513. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO01353091 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad9e88c5c447c5c1965a8b49a77122765693e4ceff7354a767a07193c2b34e6. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTK01810100 — a six-check JSON result.
マツケンサンバII(English ver.) [English Version]
マツケン・アスレチカ (アスリート応援バージョン)
マツケン・アスレチカ（アスリート応援バージョン）
マツケンサンバII×行くぜっ!怪盗少女 -TeddyLoid ULTRA MASHUP ver.-
マツケンサンバⅡ ｰ芸能生活50周年記念盤ｰ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515a2a6f9ce0d6107ac04cff0d4751840d6b294cd20d267ca75c88a99333a124. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI02404150 — a six-check JSON result.
マツケンサンバⅡ[English ver.] - English Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0c683b09c64a6c4177e29482ee7817b00b321e499dd0190c3d27a9723a54a4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI00408124 — a six-check JSON result.
Matsuken Samba II (50th Anniversary Edition)
マツケンサンバⅡ (芸能生活50周年記念盤)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515a2a6f9ce0d6107ac04cff0d4751840d6b294cd20d267ca75c88a99333a124. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI02404150 — a six-check JSON result.
仮面ライダーオーズ WONDERFUL 将軍と21のコアメダル オリジナルサウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b643eb27258e8043c849974a66e9da443c8fdea18511f1c2461ac023f0c5af. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB601136343 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156336a5edbddd99c2f8a686eb51527ece75ab6daa513b985a4e44e00770ce4f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTE01205260 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3ac18d06542c3e14bd9da8a231b9a06334852017917f5d4fb9ae033891b438. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTE01205270 — a six-check JSON result.
射手座のふたり（オリジナル・カラオケ）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc386d0c9d7c5b63373822ddc709fa44be51b8304120077dc58e893b1dc81db8e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTE01205279 — a six-check JSON result.