, legally registered as since 1956, was a Japanese singer and actor. He was best known outside Japan for his international hit song "Ue o Muite Arukō" (known as "Sukiyaki" in English-speaking market
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 0x60cc53164d97a0ae50e918cd56702084d52954568266e1300ac21b22e503f2c6. 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/f3775b91-862f-4458-be60-2258a1bd1c7f.json and https://artists.proofprofile.net/proofs/artist/f3775b91-862f-4458-be60-2258a1bd1c7f.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 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 0x99d3d3321bd8e36f936ebb540b7de6edf790e3b13f4a0f5bd050d499e112b6b5. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DEUE22382081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdb947367c4cf56a27a9f2e79e626845e771165436e28c93406a337aa1c12be. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE22382086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e25b3ba8d98a30af00b4c02ff36a158cb24d5f5acbbc41070610d9d3f68dc43. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE22382103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6111ca2dbac9eabaf86d66c4cc9fa66d6cccb5a7d4dea85a2f5635daa8df082d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE22382113.
Sukiyaki (I Look up as I Walk) [Remastered 2025]
Sukiyaki (I Look up as I Walk) [Remastered 2024]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8950baed345fb6e1e1511deeee056d7d5932ac5534c6546d833c7f2e09edea35. 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/JPFH08501309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe021ec67b8213b14a702b3a73118f36f6159ce33c88d9f0cb56e4608d3e3ca3c. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTO07622720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34eb318ef73dfc03bf684862d8898544a9723324d88edc9337f95d35d993f3c0. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/JPTO09424850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd772f209b888280fce9f19277950860d120e626d2f76f0ce99cd1f83bc3c9c56. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/JPTO08512660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf035388feec290f66a3797e6b0be1225629264b066a76209044ff7a35c3bc4. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/JPTO09400629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab0346d154bceb1caf692198804275061c748c77a6d03332c659f27e346158d. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO01706419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94bbf928b500ec1ddd7a10f08650ae44887ecff57e5a7e2c6e875a2111cc0366. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/JPTO07622680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635fbf9b2f44892f8943e61adf1c8d594ada2e99b537b2c2d79a7996c0b50b22. 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/JPTO07915960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857790fae8d1ba126982cf4c814deb78b2e04867b79e655ce4455de844aec95c. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/DETL61616305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180a26e417efa990e45079d2fb21cf6596c52c9036dee6533fd3dbb3c88f7478. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/DETL61616303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa951fc020a5ce9f878751d750f6fa4b1e4b0ec3b6b9493913228af43c053457. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JPTO06800270.
九ちゃんのズンタタッタ（聞いちゃいけないよ）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74e8a879b95b9af758506b801ac76db9c70dd02f0816db3fc00c94b1b2bc27e. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTO08512610.
九ちゃん音頭（それが浮世と云うものさ）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f6d149abe12ca0bbb556ad2e1527a0f2c5992196283db35c98fc26e73b1fac7. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/JPTO08512630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65739108aff5f4c6a1fd12f7414e21d8ddd759842d4bbfd02736acee0a48848. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/JPTO07614700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd772f209b888280fce9f19277950860d120e626d2f76f0ce99cd1f83bc3c9c56. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTO08512660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602421a829488f17f7ebe946bca5d9f2f39c3f813f8a5d1dd112c65612239b67. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTO07614780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b64845dcf139bc372474e4284e77ce148f660fd57fcfb60f31b8dbc7f299cbd. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/JPTO09424730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac22fbccb7b6ea75ba71b13ac20f2c20d683b2de28bec31c259277201e0200c. 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/JPTO08512720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe4f818299b6f2fc90d9ed097e7a9e70e70f0b98d4cd213282607bc42f4e995. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JPTO09424870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc3dbd6feb22e777eb23b1d7d8bcfcf2b6e8fdef368002566abb5f8a5e50187. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTO07622450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301bb569b809586728e8b0217b43781db787a0f141eb1749294bae844b9d6307. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/JPTO06300350.
上を向いて歩こう - ウエスタン風：1973年09月11日 at 渋谷公会堂
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0b7e916473a90d43cc95495e437274ddd8600998fb5ece871548b31a332cec. Chain 2 (Bitcoin): anchored in block 957647 (2026-07-12T03:57:41Z), 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/JPTO00701390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd61bf34dc193070e1cf709f9a838effc02f87149077eb212b6813284000dfc3. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/JPTO07617640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f61dc97baaa6889337aed062288ed79a25aa00a1292cf9be9f445b8e66b91d. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/JPTO09425300.
The Many Moods of Mad Men: A Musical Companion
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cda21e87d6d0ca1cf742dfce207e11df78886e3b3caa1c743e7f1832d878b7a. 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/GBSUW0735309.