(also known as Nobu Tsujii) is a Japanese pianist and composer. He was born blind due to microphthalmia. Tsujii performs extensively, with a large number of conductors and orchestras, and has receive
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 0x89301c5ef93b2e998fddc7f07fd066686428cb5b1b2517d57fed5f081cde191a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d45ad91-a224-4b3c-9044-b5c5960448ea.json and https://artists.proofprofile.net/proofs/artist/5d45ad91-a224-4b3c-9044-b5c5960448ea.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 0xe5668fd04e4e94a86f5e1e9a74caa4662e3a38f55c68155bdf74e6371b3e06db. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB600754102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52a4c13e36bd8a106979f23d36c773d292062a77c068609916fdbb2ea832173. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/JPB600754105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961b42a7e042171772a06982f2906ca7874a86a9f96d50ed5bb25ed44e3f59de. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB600754113.
2009 Van Cliburn International Piano Competition: Final Round - Nobuyuki Tsujii
2009 Van Cliburn International Piano Competition: Semifinal Round - Nobuyuki Tsujii
2009 Van Cliburn International Piano Competition: Preliminary Round - Nobuyuki Tsujii
13th Van Cliburn International Piano Competition: Gold Medalist
マイ・フェイヴァリット・ショパン
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22e6dcbcaf0145104454d12e4a05bd916ae9a7a5a01c0bd419042545834a916. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPB601009703.
2つのノクターン 作品27(第8番 変ニ長調 作品27の2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72e9fe6e5a0ca1d00c19ee65088cdb1ddc71bec29cf63bfcb20efc0fc4d5ca3. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:30:11Z), 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/JPB601009709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7519e3b557828324624bcbd24960431f3c929a2b15e3fe12ba2890964e47e1. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/JPB601048601.
ため息 (3つの演奏会用練習曲 S144/R5 第3番変ニ長調)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8f6cdfe81efbeba6fcfa68be87e7d9344614ee19d2eac1e96c30e70c339391. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPB601048617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ee6cad47235c8129592daf3e4e0132f5628e157b54c2493ec2351c5786dedd. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB601048618.
Piano Concerto no. 2 in c minor, op. 18: Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf861b763fc95cb460af5682472c06890588fdd67f3779f35583ecaa4b7edb7c7. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB600858601.
チャイコフスキー:ピアノ協奏曲第1番
ピアノ協奏曲第1番 変ロ短調 Op.23 - 第2楽章
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1f8aaceae515eb119e501c2d843f10eee4e7a0f71fa9936fd104832a33a476. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPB601104802.
ピアノ協奏曲第1番 変ロ短調 Op.23 - 第3楽章
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0eb512e3e93ba677c26d94bb2d5dd43f10047a45a3c0f2c1ac61a21c063259. 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/JPB601104803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d8839a8db6acff25a491598a62cd1a95fd53d0cb103e9d23721d66c851dd5a. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPB601131401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01afe11a658e36fb7c81b1f218ecc73e082a2f879bc6b961cae91afc1439e3ff. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:48:04Z), 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/JPB601131304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdb1ba4daa5a9e1b1fbb0b141fbd24086c205d892c43f1c1102abeb8fa4bc215. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:40:08Z), 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/JPB601131305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9abe10e8ac6041280eec223ec01842c0d8500fb1b82c91744c39903f7beb3f5e. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/JPB601131307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba8dbf1b73709678bd8c13c7e0b3baa2df255fba26944d77801a9cbc83abf23. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/JPB601131308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda47092e9d31a5aed58aaf68661b5784ee388409325f666f99e420679c46227. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPB600754111.
それでも、生きてゆく オリジナル・サウンドトラック
それでも、生きてゆく =希望= - オーケストラ版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f270155272d9ea506d2f6e0b7283402f64c3ccfaa62e2afed702fe06f76c0e0. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/JPB601135703.
ピアノ協奏曲第2番ハ短調作品18 - 第2楽章
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27596c0d4cb087091e8fdbad2892f6fb110a67bee035640ab3ef989536247165. 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/JPB600858602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6991e725f45a71722963fc19c04ebd90eefc6a6cd74522fcd29744f9c2d45b23. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB601135713.
辻井伸行 カーネギーホール・デビューLIVE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70991bed416037d9035628317a83edbe0eb83f46367ec9f230a911d2e35846e. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB601168708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d3d171cf0153b434bf6223673ab76da49c5141f37e126069e3091eb7955a22. 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/JPB601168721.
はやぶさ 遥かなる帰還 オリジナル・サウンドトラック
ジェニーへのオマージュ〜自作アルバム
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2126bf77f04f21ba5ce018571790d37276d3f02d242064d921f753c60ceed3. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/JPB601270259.
英雄ポロネーズ、ラ・カンパネラ～日本ツアー≪ショパン&リスト≫
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72e9fe6e5a0ca1d00c19ee65088cdb1ddc71bec29cf63bfcb20efc0fc4d5ca3. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/JPB601009709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffff5493c88c8169dd8ea691a5ec9916214aa2c79327c17ad96991f9efc42662. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:52:57Z), 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/JPB600754101.
アンダンテ・スピアナートと華麗なる大ポロネーズ 変ホ長調 作品22(華麗なる大ポロネーズ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71fd17954d98194884eef61761bf6eeceb941f5a9fd013bfdb5c39fcd024c03. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPB601009702.
ラ・カンパネラ〜ヴィルトゥオーゾ・リスト!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1bc36f692f3c8180a6b5d130613b3b7db44cfb9a6daa79fcdd643ed628bd7c. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:09:25Z), 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/JPB601403138.
イゾルデの愛の死 - ワーグナー/リスト編曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185347a48422196e62917e9cf20f2d068379d0ba3e520acb07e3d35cf455b0cb. 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/JPB601403137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ca6daaaa6c4dfe3e97d6d1430d7f4417d65db9ff742acf2e5153711d72af0f. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB601403136.
ため息 - 3つの演奏会用練習曲 S144/R5 第3番変ニ長調
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8f6cdfe81efbeba6fcfa68be87e7d9344614ee19d2eac1e96c30e70c339391. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB601048617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea7eb3bafa510ae313ac3a002f6b01b39cb8da6ca3dfeaeb5ad3d80817fb15a. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:38:54Z), 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/JPB601303421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5fd7a91352c5acd5e2005956dcf2d0996550eb26f344193f8b591dde760791. 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/JPB601303422.
ドビュッシー:ベルガマスク組曲～月の光
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64fe6c5adf426bded84b0811ba35a5fc7977f53a72ed69b596468c275a996734. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:19:25Z), 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/JPB601303425.
ピアノ・ソナタ 第11番 イ長調 K.331「トルコ行進曲付き」(第3楽章 アッラ・トゥルカ:アレグレット)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e29e3e84a878bf642d7980e5853d37a146abddd7e14b5195309254b8fefe4fe. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:30:58Z), 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/JPB601239207.
ピアノ・ソナタ第17番 ニ短調 Op.31-2《テンペスト》(第3楽章)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad97d5c61c57fd462e42cce3f0bc8f3e4acd66472b0dd1c3fe8921747d0e8c40. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-20T12:14:11Z), 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/JPB601168703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22e6dcbcaf0145104454d12e4a05bd916ae9a7a5a01c0bd419042545834a916. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPB601009703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ee6cad47235c8129592daf3e4e0132f5628e157b54c2493ec2351c5786dedd. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPB601048618.
モーツァルト:ピアノ・ソナタ 第11番 イ長調 K.331 - 「トルコ行進曲付き」第3楽章 アッラ・トゥルカ:アレグレット
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e29e3e84a878bf642d7980e5853d37a146abddd7e14b5195309254b8fefe4fe. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/JPB601239207.
ベートーヴェン：ピアノ協奏曲第5番《皇帝》／モーツァルト：ピアノ協奏曲第26番《戴冠式》
辻井伸行 印象派コレクション〜テレビ東京「美の巨人たち」テーマ収録
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5fd7a91352c5acd5e2005956dcf2d0996550eb26f344193f8b591dde760791. 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/JPB601303422.
ドビュッシー:ベルガマスク組曲〜月の光
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64fe6c5adf426bded84b0811ba35a5fc7977f53a72ed69b596468c275a996734. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:45:53Z), 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/JPB601303425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ea91417758c880fb8203d6d2babd579aef42c357aba44f3375b04f1c0430fd. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB601303431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd2e45be410ce61b74f719e20d0fe0425e67f3ebcac6e3a31957c85abb8469e. 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/JPB601303430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e7ccf0b6c614eb59480c12aa7360e7a22aaef78b4f13d8ad1e717586fb74dd. 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/JPB601502432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c20eaf46cbc9198c9c67033b8ed8b0cfca8a0d11feeb641e030d254bc89e020. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPB601502434.
亡き王女のためのパヴァーヌ - (ラヴェル)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b00fd8a35b093b6d93f8b0664cac63e853c0096094df6e712e4c41433476b6. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPB600754107.
美の巨人たち オープニング・テーマ - ピアノ&オーケストラ版 (辻井伸行)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc109e05fe5e5922f190bf9549260d11630e85013c882d8209afef40ccdfd0e79. 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/JPB601502436.
リスト：ピアノ・ソナタ ロ短調 / ラヴェル：夜のガスパール
ピアノ・ソナタ ロ短調 S.178: Lento assai – Allegro energico – Grandioso – Recitativo –
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f30cedf41fe2773b2fa01e038a0eead34a8f7ddd1720dda803217bb30a144b2. 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/JPB601601984.
リスト:ピアノ・ソナタ ロ短調 / ラヴェル:夜のガスパール
ラヴェル:夜のガスパール(第1曲 オンディーヌ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34d2b67194b634bbcbf6fa962760e80af8378314168f09d751162fc5d7c0dd6. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB601601987.
ヴァン・クライバーン国際ピアノ・コンクール優勝10周年記念アルバム
ラフマニノフ：ピアノ協奏曲第2番 / カプースチン：8つの演奏会用エチュード
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72188e55e1a32ab6d7d0c5c6758e1884dfe8401d771f66c6a07887a5c7a3b5d8. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/JPB602204223.
8つの演奏会用エチュード 作品40: 第1番: プレリュード
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06bb0710208aabca5d4ec41a3d4a2d0d9717b4df227e65d0689df1c59557bc7. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:08:01Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602204234.
Elegy for the Victims of the Earthquake and Tsunami
Nobuyuki Tsujii: The Verbier Debut Recital (Live)
Études, Op. 10: XII. Etude in C Minor 'Revolutionary'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f680b099a58ec757903e65283e81c55d7c6891fb2aaf38fcd648449207ce7e9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USHM10954716.
Études, Op. 10: I. Etude in C Major "Waterfall"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0faace10579f34f1070488aac7b8d7695b5a57d0fd98c739ceb32674778889. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM10954705.
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