, born 細川貴志 (Hosokawa Takashi) on 15 June 1950, Makkari, Abuta District, Hokkaidō, Japan) is a Japanese enka singer. In 1975, he debuted with the song "Kokoro Nokori". Hosokawa immediately became one
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 0x163e21204ff3cc8adb4f10625d047774df207bb908ed792d7247200671b4f16f. 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/cdbfbe58-ac77-4990-a7f0-c47bbf36bb00.json and https://artists.proofprofile.net/proofs/artist/cdbfbe58-ac77-4990-a7f0-c47bbf36bb00.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 0xacb57a1dd6ac7ff945939b550b2fe1dadcd94b785ef0daf86f50ed7e238c11dd. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/JPCO07510540 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1efcf32018552a610210349b3ce9eb036c719d8890b60fdf4ddda197f14997. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO08214990 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77e10c5c673f735a0b7a61d8f301d78f05dfe4b4330b182d624e5c38bc0e762. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO08804320 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdadf155afd60dfe35185bdd7082ad13fdeefabd77e9f1927020b36452e9b10dd. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO08804340 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63a64b69ec02f0450565f312da3dfc853cd13d40f4aa83d20363c0ca6203382. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO09114380 — a six-check JSON result.
双葉山／湯けむり情話（ニューヴァージョン）
櫻の花の散るごとく／夢のゆめ～近松恋物語り～
合掌（てのひら）風の宿／旅唄（たびうた）
大鴉（だいあ）～故郷（こきょう）偲（しの）んで～／恋椿
歌手生活30周年記念曲 城崎（きのさき）恋歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ca6d7391950bea2668ae0a7b6c2950341c38e46e97e6a1666fdf8100341aa2. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/JPCO08507530 — a six-check JSON result.
定番 歌カラ ベスト 3 細川たかし 矢切の渡し / 北酒場 / 心のこり
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1efcf32018552a610210349b3ce9eb036c719d8890b60fdf4ddda197f14997. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPCO08214990 — a six-check JSON result.
細川たかし全曲集 恋宿り 〜銀山夜景〜
細川たかし全曲集 櫻の花の散るごとく
芸道35周年記念アルバム 民謡のこころ
“極上演歌特盛カラオケ”シリーズ 細川たかし
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63a64b69ec02f0450565f312da3dfc853cd13d40f4aa83d20363c0ca6203382. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/JPCO09114380 — a six-check JSON result.
女の十字路 〜あなたに迷いそうな夜〜
(昭和アーカイブス) 昭和演歌名曲集 Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e723f9d1f941213dd566fb936659aaf76f4db025447d88c7a0da630ccbb3f23. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO07511750 — a six-check JSON result.
(昭和アーカイブス) 昭和演歌名曲集 Vol. 2 〜熱唱古賀メロディ 人生の並木道〜
(昭和アーカイブス) 昭和演歌名曲集 Vol. 3 〜ぬくもり〜
細川たかし全曲集 女の十字路、艶歌船
芸道40年記念 細川たかし全集 心のこり〜艶歌船
細川たかし ダブル・ベスト☆オリジナル & カバーズ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a71a7edb6fbf1175f85547bfbe5d44751f4bdafdeafdf96a0fdf8f6315dbf1. 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/JPCO07806360 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce87d152b17dde1eb4980462a9f5f4982f6e966c7292ef7d76676fef8297e2f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO07902980 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79fbb5faac10e8f487d3f27fb66c73a0a1fbcce49a244df15fd44e7125d4684. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/JPCO08705820 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffad0d05a4cd72e936652a27bf01a62bfb5b287fcb1d148f9013634909e03996. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO09466730 — a six-check JSON result.
スーパー・カップリング・シリーズ 矢切の渡し / 浪花節だよ人生は
スーパー・カップリング・シリーズ 心のこり / 北酒場
細川たかし全曲集 縁結び祝い唄 / 人生夢将棋
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525ed5c591daf444ddda28fac39b5d6ac9b089dadf5c46270daac6b600532f93. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/JPCO07814950 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41fd9044e5b558fee5d4f35df52814a2eb7333462c5f2d1738d72bcefc39ef05. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPCO08741360 — a six-check JSON result.
細川たかし全曲集 輪!諸居にっぽん
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab2873d988907a5e6c00821a8bc30463a9c9fe196e1d90fba91a7ff84c83197. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/JPCO07910380 — a six-check JSON result.
細川たかし全曲集 2020 イヨマンテの夜
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbeb6095e6f8a0e7b15c588497850165b9db371e08495f94f463125a184c956b. 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/JPCO02214990 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd281fd2cb64f0421ab0c30d6ca13c29c654f22047f62d496af1e7b0c58405a. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/JPCO09163080 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5e90aeede10bd07b323c9ca843154c4a2fc9bf7d36749f7883a73a0cce45fc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO02323190 — a six-check JSON result.
浪花節だよ人生は - ニューアレンジ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdee4ab73cd2f513569526382eb003364dd2dfd82a1c915da872ca622e66b2ec. 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/JPCO09163060 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ad3c9e2d97ab937ddb36f86b4112ffc9969e8eb6684e827f865ba8a22be5bb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO02411270 — a six-check JSON result.