300px|right|thumb|Abdel Rahman El Bacha on the concert at théatre St Victor-Mutualité, Paris. 2 March 2006 Abdel Rahman El Bacha (, born October 23, 1958) is a Lebanese pianist and composer. His repe
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 0xffa765b6860cf1bb0ef8489a320f2807c432b996fa01c6ed7a61dcb53ce55f70. 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/054cd0cd-704c-481b-aae6-993735f36e73.json and https://artists.proofprofile.net/proofs/artist/054cd0cd-704c-481b-aae6-993735f36e73.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Jean Sébastien Bach : Concertos BWV. 1052 - BWV. 1055 - BWV. 1056
Concerto en ré mineur, BWV 1052: Allegro
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 0x03ff188fb8288a0705370e004d1bdc88ea8fcaba51ba7437ba1a85fbba8beca9. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/FR6V81106886 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082be7fa80a7c2b0692f58184c8d0ee78cd35a99f6134ecce39e9de13222ec9b. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V81106887 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1de254715a41c6a6d99c5cde58a7733d65a9442a51e183e7431b81e56d631a2. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V81106888 — a six-check JSON result.
Concerto en la majeur, BWV 1055: Allegro
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Concerto en la majeur, BWV 1055: Larghetto
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Concerto en la majeur, BWV 1055: Allegro ma non tanto
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Concerto en fa mineur, BWV 1056: Sans indication de mouvement
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54d6cf002f001089487a9a82f0a7963e47b4aed0bad16dfc33869d623d1e1df. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V81106893 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcdf370ef9d7db7ddf93a16ff7bfdab03bd2017e3a2553de920f76cd37a11c7f. 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/FR6V81106894 — a six-check JSON result.
Johann Sebastian Bach, Harpsichord Concerto No. 1 In D Minor, BWV 1052
Maurice Ravel, Piano Concerto For The Left Hand In D Major
El-Khoury : Oeuvres symphoniques - Oeuvres Concertantes
グラナドス ピアノ組曲「ゴイェスカス」-恋するマホたち 及び 「スペイン舞曲集」より
エネスク：ヴァイオリン・ソナタ第 3番、バルトーク：ヴァイオリン・ソナタ 第 1番
フランク：ヴァイオリン・ソナタ、シューマン：ヴァイオリン・ソナタ 第 2番
J.S. Bach: Goldberg Variations, BWV 988 & Italian Concerto in F Major, BWV 971
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e95e1afdef5bc5cf9abdda32f08bc9a4bb9ba0fdcb77e1864f3e084d0db644e. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPX852000592 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227e1830b41771b7ece5a703322d7342568ba85e41ae36220d5b8370784a8b55. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/JPX852000593 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5469f7f1d6c65ff4d99f7a2bd52c546997344b8cd928c9c687f3ffca413edd63. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/JPX852000595 — a six-check JSON result.
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Goldberg Variations, BWV 988: Var. 6, Canone alla seconda
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980b0b813dc07d5b19e4081f6b0fe9cd1badcbdf5a99829a42a21ebe33a1304b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPX852000598 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x298b37be8fb33e8b24d25c931d55e3c22dda46f8f6b761073f63e7ab8ee77f49. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/JPX852000599 — a six-check JSON result.
Goldberg Variations, BWV 988: Var. 10, Fughetta
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc0be9d727dc77e70c3356c468fd33473df75925a7caf6017fa02f67c874fc8. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPX852000604 — a six-check JSON result.
Italian Concerto in F Major, BWV 971: II. Andante
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Chopin : Préludes, Fantaisie, Berçeuse et Barcarolle
24 Préludes, Op. 28: No. 4 in E Minor. Largo
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24 Préludes, Op. 28: No. 15 in D-Flat Major. Sostenuto "Raindrop"
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa4b333a08c0196a2ff3e6a2ffe8bb2e23f47450c7fa05461d489d7076f52a7. 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/FRU622051402 — a six-check JSON result.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7de8cd3cda93974bb7f88a179689accf57bd03f4959b4f88e9f86ec3df4fe2. 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/FRU622051404 — a six-check JSON result.
Trois pièces orientales: I. Danse rituelle
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Le Monde des enfants: IV. Devant le sapin de Noël
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Dix pièces romantiques: II. Valse éphémère
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Chopin : Intégrale de l'oeuvre pour piano seul, vol. 6 : De Varsovie à Paris 1830-1831
Nocturnes, Op. 9: No. 2 in E-Flat Major, Andante
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平均律クラヴィーア曲集 第2巻 (24の前奏曲とフーガ) BWV 870-893
平均律クラヴィーア曲集 第2巻 第1番 ハ長調 BWV 870 Prerude No.1
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平均律クラヴィーア曲集 第2巻 第13番 嬰ヘ長調 BWV 882 Prerude No.13
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平均律クラヴィーア曲集 第2巻 第1番 ハ長調 BWV 870 Fugue No.1
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平均律クラヴィーア曲集 第2巻 第13番 嬰ヘ長調 BWV 882 Fugue No.13
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平均律クラヴィーア曲集 第2巻 第2番 ハ短調 BWV 871 Prerude No.2
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平均律クラヴィーア曲集 第2巻 第14番 嬰ヘ短調 BWV 883 Prerude No.14
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平均律クラヴィーア曲集 第2巻 第2番 ハ短調 BWV 871 Fugue No.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd0e4541333e5d35e6cb883fe479cf647e7d888a7029e909e7c150fd325190a. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG201417230 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第14番 嬰ヘ短調 BWV 883 Fugue No.14
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1965a79608002e84ac3aaa0cd8a5168d9c89d6893f6a7a5cf11ad0218af32f2f. 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/JPG201417254 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第3番 嬰ハ長調 BWV 872 Prerude No.3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a260d695999cd4dc71952ed5cdec81c9753b259c16db08c2dfe7108c1c6de0e. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG201417231 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第15番 ト長調 BWV 884 Prerude No.15
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a6cc3072592acfccdf936f896d06aedac6d677e571018a0286f46c95dfb578. 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/JPG201417255 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第3番 嬰ハ長調 BWV 872 Fugue No.3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6856c741c3f3897a31a0f6e45346f1f2e053c3d59245fa69e160fe97660ec50. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/JPG201417232 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第15番 ト長調 BWV 884 Fugue No.15
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f21585bbc9ffec0d6d200e17e00386aa9ecfe12d85ec6ba6c77b9d715ae0d7. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/JPG201417256 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第4番 嬰ハ短調 BWV 873 Prerude No.4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb924e217b9d3156cecdc24567719015ea4cba546661c5066388eda487f557d18. 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/JPG201417233 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第16番 ト短調 BWV 885 Prerude No.16
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3012467f21fb93ea14fbd79c6d6a3c4c90f57270d9254ce616c66a7fd40c1500. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPG201417257 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第4番 嬰ハ短調 BWV 873 Fugue No.4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6d6748bcebd8a55ae65808d4306406254d3576289118b76af8279f9eae3ebf. 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/JPG201417234 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第16番 ト短調 BWV 885 Fugue No.16
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7c1d27738febc7c08fdc219f2d453e21f61e3ae099a2de8b3c5d5aadf0c7f69. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/JPG201417258 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第5番 ニ長調 BWV 874 Prerude No.5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c695c0aadd66a5abd2cbf44febead691503781d1dfbfa4246a795f209b1e8f. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG201417235 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第17番 変イ長調 BWV 886 Prerude No.17
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfde946daed8d93391b83b1f8a0d625f9b913525efd435fe39b23f98de31022e. 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/JPG201417259 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第5番 ニ長調 BWV 874 Fugue No.5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62bec7e0bea7e907dc78546b044ab5ac9004582594c03ea633a5b0557eac3c56. 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/JPG201417236 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第17番 変イ長調 BWV 886 Fugue No.17
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4988f3ae833cae505822f62ed284f9d77baa2b1a46bbbdf30f400da0c721cc. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/JPG201417260 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第6番 ニ短調 BWV 875 Prerude No.6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb2e243e41d1e3ffdf974f57e01e52edbb4ac890e125937278a0b5b7ba7a0d9. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/JPG201417237 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第6番 ニ短調 BWV 875 Fugue No.6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb97b1c4bcc2b2d96ed1467de667f0c6981254babd186871863198d82a88ca3c. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/JPG201417238 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第18番 嬰ヘ短調 BWV 887 Fugue No.18
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac6f9e7903fdaa7a4c56aeb73816591c162e5383a17b1b5afe2f9842bc55d6c. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/JPG201417262 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第7番 ホ長調 BWV 876 Prerude No.7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d16dfda29b84b22ec334af93a7fa4f6ea8c6239d936a82e4241fd8e52f4b158. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPG201417239 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第19番 イ長調 BWV 888 Prerude No.19
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80610ac2d7ec9807275b5ff87d8d0dfa571f5eb980627f7089dbc0685ae7f6c2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG201417263 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第7番 ホ長調 BWV 876 Fugue No.7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479d9482e8cb469c68a1114022c39e98d4dc94155f88834ce7ac57ffc5ccba8e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/JPG201417240 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第19番 イ長調 BWV 888 Fugue No.19
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3480e2ef802cbfdd4a43c87775e5b31e16fc83ab226f892be9c2e119501e80ee. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/JPG201417264 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第8番 変ホ短調 BWV 877 Prerude No.8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f0bb37a0d99874fccf17c4dd972415f78120adab3d59a3bf8f5675114c9350. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/JPG201417241 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第20番 イ短調 BWV 889 Prerude No.20
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173d1ee29f03dda52b3ca2a5c8ce04b9b36e4dd7ac000acb57edd835c0e7d7b3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG201417265 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第8番 変ホ短調 BWV 877 Fugue No.8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91efd5feacafd11dfe171b9fb2a4a88b7c07ec4d78de899e53832668ae4a560e. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/JPG201417242 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第20番 イ短調 BWV 889 Fugue No.20
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a2770a78e3acdc21728046a2801d836b5e7e4386369776da6bc2a22a0767b1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG201417266 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第9番 ホ長調 BWV 878 Prerude No.9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1101125a219792fb89bc3fa26573a1f311ec729a225b909c07766de0e2ca2750. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPG201417243 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第21番 変ロ長調 BWV 890 Prerude No.21
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d71e31c042931411e58fa8954c902d867bd17d19056a33f1022a2889999cb0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG201417267 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第9番 ホ長調 BWV 878 Fugue No.9
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028e4e4a747cc70f7bf6577c69230bf09b8c3a116f2a989cf153d9b4ef83210a. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/JPG201417244 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第21番 変ロ長調 BWV 890 Fugue No.21
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6b939f01e5d6a8d5c909754f9dac6494d42350fa62a14f94f1e6700775e0a9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG201417268 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第10番 ホ短調 BWV 879 Prerude No.10
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebab974bd36e044a25e1959dc075032a9377b94e99bef2991a7223ffb48c959. 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/JPG201417245 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第22番 変ロ短調 BWV 891 Prerude No.22
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf00769d3f213f5b02c80b5e835bad4d249727f67b8ad0d05ea7955a62c04908. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/JPG201417269 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 No22番 変ロ短調 BWV 891 Fugue No.22
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155318d906a2dc43716fe0e93e413e219185be1518caba27c35a652ffaa150c8. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/JPG201417270 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第11番 ヘ長調 BWV 880 Prerude No.11
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b4132fc73612a7086a919779890f6a27da6f75255026b68d2a59ec78816164. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/JPG201417247 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第23番 ロ長調 BWV 892 Prerude No.23
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4421af11f96dea76e7d12d28261363beddbf04944e4b4145cccc6d06f3fbedcf. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG201417271 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第11番 ヘ長調 BWV 880 Fugue No.11
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9673e1e13a536d61f6285cb9a020d11f5b2f2eb29bc0170b7d34ddc50dba73a7. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/JPG201417248 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第23番 ロ長調 BWV 892 Fugue No.23
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0392ffabe69957398dcad088d53df530329e5792c42a3451c26c0d36698ad709. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG201417272 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第12番 ヘ短調 BWV 881 Prerude No.12
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3bedeba8b46fcf1757bd9e8cdf9d34dead01d754cfb4f028d7ef9be3ea46b9. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG201417249 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第24番 ロ短調 BWV 893 Prerude No.24
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc90fd0f17fa86a6f70dc51d929fb9de692563e48e8b596efa10b55daeaf5840. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG201417273 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 第12番 ヘ短調 BWV 881 Fugue No.12
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3648dc6a304c31dc3172c99197be520b1d04d439ed904854231ccfc2bab62b05. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG201417250 — a six-check JSON result.
平均律クラヴィーア曲集 第2巻 No24番 ロ短調 BWV 893 Fugue No.24
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4761f238b105a01966f126f384cd3b9922d9eecf8f0618f598c3d78d8c4ede7. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPG201417274 — a six-check JSON result.
Piano Sonata No. 3 in C Major, Op. 2: I. Allegro con Brio
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Chopin : Sonata, for Cello and Piano Op. 65 & Trio for Piano, Violin and Cello Op. 8
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J.S.Bach: The Well-Tempered Clavier Book I
The Well-Tempered Clavier Book 1 No. 1, in C Major BWV 846: Prelude I
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Chopin : Intégrale de l'oeuvre pour piano seul, vol. 11 (Les dernières oeuvres II, 1843-1844)
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Sonate No. 3 en si mineur, Op. 58: Allegro maestoso
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Sonate No. 3 en si mineur, Op. 58: Scherzo, Molto vivace
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Sonate No. 3 en si mineur, Op. 58: Largo
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Sonate No. 3 en si mineur, Op. 58: Fianle. Presto non tanto
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Frédéric Chopin : Œuvres pour piano et orchestre
Grande polonaise brillante en mi bémol majeur, op. 22 (Précédée d'un andante spianato en sol majeur)
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Chopin : Intégrale de l'oeuvre pour piano seul, vol. 12 (Les dernières oeuvres III, 1845-1849)
Chopin : Intégrale de l'oeuvre pour piano seul, vol. 10 (Les dernières oeuvres, 1842)
Chopin : Variations Op. 2, Krakoviak, Concerto No. 2
Sergey Prokofiev, Piano Sonata No. 1 In F Minor, Op. 1
Robert Schumann, Piano Sonata No. 2 In G Minor, Op. 22
Piano Sonata No. 2 in G minor, Op. 22 - So rasch wie möglich
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Ludwig van Beethoven, Piano Sonata No. 8 In C Minor, Op. 13 (Pathétique)
Piano Sonata No. 8 in C minor, Op. 13 (Pathétique) - Grave - Allegro di molto e con brio
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Piano Sonata No. 8 in C minor, Op. 13 (Pathétique) - Adagio cantabile
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Piano Sonata No. 8 in C minor, Op. 13 (Pathétique) - Rondo: Allegro
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Ludwig van Beethoven, Piano Sonata No. 30 In E, Op. 109
Ludwig van Beethoven, Piano Sonata No. 28 In A, Op. 101
Ludwig van Beethoven, Piano Sonata No. 24 In F Sharp, Op. 78 (À Thérèse / To Teresa)
Ludwig van Beethoven, Piano Sonata No. 21 In C, Op. 53 (Waldstein)
Ludwig van Beethoven, Piano Sonata No. 16 In G, Op. 31 No. 1
Ludwig van Beethoven, Piano Sonata No. 12 In A Flat, Op. 26 (Funeral March)
Piano Sonata No. 14 in C sharp minor, Op. 27 No. 2 (Moonlight) - Adagio sostenuto
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Ludwig van Beethoven, Piano Sonata No. 1 In F Minor, Op. 2 No. 1
Fryderyk Franciszek Chopin, Waltz No. 14 In E Minor, Bi 56
Fryderyk Franciszek Chopin, Polonaise In G Minor, Bi 1