Roger Vignoles (born 12 July 1945), is a British pianist and accompanist. He regularly performs with the world's leading singers, including Kiri Te Kanawa, Thomas Allen, Anne Sofie von Otter, Thomas
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 0x1fd89f798d0e36514a2188973939e37ecf2fe72da6b83dbc9b0eeb40c71928a6. 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/6dd02212-76ed-4819-b3cb-2bfc04b03734.json and https://artists.proofprofile.net/proofs/artist/6dd02212-76ed-4819-b3cb-2bfc04b03734.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ernst Krenek: Reisebuch aus den österreichischen Alpen
Brahms: Romanzen Aus Die Schone Magelone, Vier Ernste Gesänge
Schubert / Sibelius / Grieg - Wigmore Hall Live
Echoes of Nightingales: Favourite Encores for Soprano & Piano
Wolf / Strauss: Angelika Kirchschlager - Wigmore Hall Live
Songs from A E Housman's: A Shropshire Lad
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 0x068c421610eac8fc2b0778e5d0d625ffd32d7bb9a51d5046bf6879d164502a24. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBABV0958446.
Rossini: Soirées musicales – Songs & Duets for Mixed Voices
Rachmaninov & Shostakovich: Russian Songs
5 Lieder, Op. 105: I. Wie Melodien zieht es mir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674a96b8343f74f24f08349fd6bf00c6e5c5049f86810cbb2233093c8d35c005. 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/FRZ140612020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9c17de0143ff8d5bcb50c20232c790a60a4dc1addc094623995b6e36a7cbc4. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140612030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587aec7b96a2eaeb13010df65b60c04135eeb20df65be34b5bf8a965a2b65a56. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRZ140612040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4a56fdf7ab594d26ea95ce838a711f608d85125bdb8aa55061233fd38fa44d. 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/FRZ140612060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0692ba9b533a16633a4e94c7e25f547f74256d947ca0585642789805ed5bad7e. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/FRZ140612070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983580d2e9a7ecd022d10ad641bb6d54abe03258d392d0b6024a94a58ea42a91. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140612120.
4 Lieder, Op. 96: I. Der Tod, das ist die kühle Nacht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d97fb051ed20708e8ea064a48dafb531800132ef678230570fcfffa9189b873. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140612140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3c72df5f75dd1553f4782755981352bc91eaa0a27a1a0570704910e26214a8. 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/FRZ140612160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a58e99edd99b3f784eff0b8fb0fbbe93bcc23e6000fba09f6d4a2f3c2e084e2. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140612210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94eda5905f0407b39843f7010952ef101ff41f9c233f41c8384826fd02d52ef. 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/FRZ140612240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d539032eef309c6f91fad9553e8924f7a2fbcf19bb29f5f6accb38d5dc2c4d. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/FRZ140612250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374816fa47d3004337e94c458ae954f0cb43fc76e4166a3a78c76de4e0820ec6. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140612260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b184fea48feef3e222d355ff0a3b41bbd86e2985692ee3cfc801565ac163cc6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FRZ140612270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2078b04730c5882c9c7917dfa658f93a73ecfe62a21f171a9d8c87a2649accab. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140612290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4828437778010685701639ae518abbeabfe8fde08d469a90a554aab5983c2d5f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140612300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d308aa23eec39257d5f6c0a7c0c2872364c46721cf038c803408b4ab2666ef. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/FRZ140612130.
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
7 Lieder, Op. 95: II. Bei dir sind meine Gedanken
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2133823c98b39c6f48edb373267045d72da02e165a297446de054e1f57f2035c. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/FRZ140612010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1048ee2e07a051ce629d3fd6f9101e2f0bfcf2549a53987994d1dc191abf445. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/FRZ140612050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbfc82add4cd56c4dc5551a9d48405f7e36408e05a0fa2ece154c91d7d7ecd4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRZ140612080.
7 Lieder, Op. 95: III. Das Mädchen spricht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6722bf66b8f77de7c4d2bbcdcb68c7f37640f2926ae18a2eda20137f72211e40. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140612090.
8 Lieder und Gesänge, Op. 59: VIII. Dein blaues Auge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e6148fb58502e0089e2748a673523c5d5b6e282f7a0479010c2e43a02f17b8. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/FRZ140612100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee2465dfcd86fac5e92a12c2ae4ee03b711d57109e5993cf310104e4d13e9eb. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140612110.
5 Lieder, Op. 105: IV. Auf dem Kirchhofe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34f3c2c47ff23c00539f1d3e34a546c35e5b870f42dd12955f8e975fd213008. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/FRZ140612150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe029ddac4a6f9a29ab737bb8f3e63851e2c226c748c72a38eff5431c4ec76337. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140612170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551888d281a3abee5d6288daf47e5bdd2e32ca8b2c4481a28e884b9cf9d02a5e. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140612180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb2ade80d3be340afb9c0fb8d6ffd0c2c6958ba43d6088f3e78e2d4554ea325. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140612190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b503f685ee5ac87b6a361ba2d850f60bf80d2f4013d2eb748126b2277a8eb12. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FRZ140612200.
5 Romanzen und Gesänge, Op. 84: IV. Vergebliches Ständchen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa03d555bd3ee4119ea8b3cc510fd9cd9d545677f38c6b404ee1b9d6583c383f. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140612220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8692ec9a258c124913c4f6f8144abf5f6d38985ed2fe461a9874171a360855. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/FRZ140612230.
7 Lieder, Op. 48: I. Der Gang zum Liebchen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c393dfef9e3c395336fd037bbde6bb505da7e341377b4d2725aadab45943da6. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/FRZ140612280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8e990e5bae23d2a9a8404580c0c1fa4059a77e4c1b69273df1ba64b50412ac. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140612310.
Russian Song Cycles: Mussorgsky, Prokofiev, Shostakovich & Britten
Debussy: Clair de lune and Other Masterpieces
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba814f223f28d45f98159cc73d6f76ceb543b71359f7b85af1a0b8c325d9a9f0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBAYC9902546.