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 0x204fd67094fb1fbf5a8427d12f0237b9c9f8113039f05d6d452a3b65714c4d98. 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/c900626a-5956-470c-9f44-793f09178b1c.json and https://artists.proofprofile.net/proofs/artist/c900626a-5956-470c-9f44-793f09178b1c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bernard Hoffer: Concertos for Violin, Piano & English Horn
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 0x4e4e6e7e306be5e59cb4645bd051e8b491771c30444bd0849db97e2882e16d25. 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/IEAQY1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e823c208738c51991e27502a355ff6722b9e1cc2276b5a68dd2672d72ca2e16. 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/IEAQY1800003.
Riverdance, A Symphonic Suite: I. Cloudsong
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Riverdance, A Symphonic Suite: II. Reel Around the Sun
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca279e5db876f2e186c2b4a2063b90a0408a3a3ceab90c66b74ba46bc70282c9. 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/IEAQY1800008.
Riverdance, A Symphonic Suite: IV. The Countess Cathleen / Woman of Sidhe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db402d54a4a664fa66ac71da430e59174fbb0c7377af41eda74bf64a0708e1c. 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/IEAQY1800010.
Riverdance, A Symphonic Suite: VII. Macedonian Morning
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Riverdance, A Symphonic Suite: IX. Lift the Wings
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b496b2d4c6939255cd6230e3576abc3c9e6a51c0f1c697b53d7c0419a21b52. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IEAQY1800001.
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 0x35c911c66e50d68bfd32d2d293c184ebc6697a0a4d04df3968cc799af17cce59. 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/IEAQY1800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11bd9824a38e7a0e6275b6018add77dcc002b98959c3bf0f6c2f32820808d3d. 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/IEAQY1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b042adfaacff6bcf0f1e2ad42d11d80f469368e3fd19b475e6752d9b96a18d. 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/IEAQY1800006.
Riverdance, A Symphonic Suite: III. Caoineadh Cú Chulainn (Cú Chulainn's Lament)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557e3729a7504214e9e91cf048eabb026cc4e1fea3f4cffd9d397252f92b832c. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/IEAQY1800009.
Riverdance, A Symphonic Suite: V. Firedance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be35791d6f1e5d25e813777318dee78ef5cc7e59732e2911b938e0f3f934d8e. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/IEAQY1800011.
Riverdance, A Symphonic Suite: VI. Slip into Spring
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Riverdance, A Symphonic Suite: VIII. Marta's Dance / The Russian Dervish
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503d64db2a489bd3c6c4044eb0d5fcb7dc601958918002279beb69868c0997f2. 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/IEAQY1800014.
Riverdance, A Symphonic Suite: X. Andalucia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000c6f7ba2ca9821f02013e0ebc21608e2fe5660e4370fe146087f9f80b7e991. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IEAQY1800016.
Riverdance, A Symphonic Suite: XI. Cloudsong, Riverdance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6e340880d9e99666416354eb56c591645b9478088e5d12b0e7914421c1ec9d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/IEAQY1800017.
The Essential RTÉ National Symphony Orchestra
Kevin Volans (Composers of Ireland Series Volume 10)
Piano Concerto No. 2 in C Minor, Op. 126: II. Adagio molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85fadb398e2ecc566de479c4b4d6dca469a2a60f16ac2220af23826ede263043. 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/CH1261110102.
Piano Concerto No. 2 in C Minor, Op. 126: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5a9a7f52457ec6a3288e3a5d2a4ccae79a7e29ef2055432f34ec00a3ad550d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH1261110101.
Piano Concerto No. 2 in C Minor, Op. 126: III. Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a1f0a00472f7384f2733d5d20a6202a768713cc9fcedac2864523edc9e3bdb. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/CH1261110103.
Obras-primas da música clássica portuguesa
Fauré: Pelléas et Mélisande Suite, Op. 80 & Other Works
Pelléas et Mélisande Suite, Op. 80: II. Fileuse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73bee6a4f67cb74b4c7a471d2ab1655366e45e40bd58ee28dbad88f2c1c2a73. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:18:35Z), 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/HKI192409702.
Pelléas et Mélisande Suite, Op. 80: III. Sicilienne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fb4e7b7f801bcb6b2993cf2b4f9586cc672687fab589cb11c862b2b1d630d0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HKI192409703.
Prométhée, Op. 82, Act II: Prélude. Andantino (1917 Revised Version) [Orch. Jean Roger-Ducasse]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12337e361ee4fcbbbfa60b501ed468ffd81fee50bc297add9af47abf67a8a48. 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/HKI192409707.
Prométhée, Op. 82, Act III: Prélude. Andante moderato (1917 Revised Version) [Orch. Jean Roger-Ducasse]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50cd6a93eadeb1d9b98f5e8e7a051da03b74cc9b942952f94001a610fd1879f. 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/HKI192409708.
Prométhée, Op. 82, Act I: Air de Gaïa. Arrête Prométhée (1917 Revised Version) [Orch. Jean Roger-Ducasse]
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2 Songs, Op. 4: No. 1, La chanson du pêcheur (Version for Voice & Orchestra)
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4 Songs, Op. 39: No. 4, Les roses d'Ispahan (Version for Voice & Orchestra)
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Shylock Suite, Op. 57: I. Prélude et chanson
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c6bf68dd880bb4cfd247f3984fd8cb41f5d62d51305d877cf0d83d47937016. 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/HKI192409716.
Pelléas et Mélisande Suite, Op. 80: I. Prélude
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Pelléas et Mélisande Suite, Op. 80: IV. La mort de Mélisande
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Pelléas et Mélisande, Op. 80: Mélisande's Song
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Prométhée, Op. 82, Act I: Prélude. Molto moderato (1917 Revised Version) [Orch. Jean Roger-Ducasse]
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Prométhée, Op. 82, Act III: Choir. Des ruisseaux et des sources claires (1917 Revised Version) [Orch. Jean Roger-Ducasse]
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5746a504534fb3769f5a238a3aac1ce8bc0a4ea21ef7602f5c769988d84f15e7. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/HKI192409711.
2 Duets, Op. 10: No. 2, Tarentelle (Arr. for 2 Voices & Orchestra by André Messager)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdc0394f647a4c7236f05c0a6c3fac0802802c9da4690a9215b33ecce3fccc4. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/HKI192409717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d7aa7fbea5bda93ffccfb755a1f62989dd1c3dbe5a23df3eec56e9ddd27fb6. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/HKI192409718.
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Poulenc: Les biches Suite, Les animaux modèles Suite & Sinfonietta
Rhapsodic Celli. The Music of Frank Corcoran.
Rachmaninov: Symphony No. 3 - Melodie in E - Polichinelle
Rachmaninov: Symphony No. 1 - Caprice Bohemien
Rachmaninov: Piano Concerto No. 3 - Prince Rostislav Overture
Mendelssohn: Symphony No. 2, "Lobgesang"
Perry: Music for Great Films of the Silent Era, Vol. 2
Dukas: L'apprenti sorcier, La péri & Symphony in C Major
Donnacha Dennehy (Composers of Ireland Series Volume 9)
Bernard Hoffer: MacNeil/Lehrer Variations
Perry: Music for Great Films of the Silent Era, Vol. 1
Matsumura: Symphonies Nos. 1 & 2 / To the Night of Gethsemane
Freitas Branco: Orchestral Works, Vol. 3
Freitas Branco: Orchestral Works, Vol. 2: Symphony No. 2 - After A Reading of Guerra Junqueiro - Artificial Paradises
Perry, W.: Jamestown Concerto / Schuman, W.: A Song of Orpheus / Thomson, V.: Cello Concerto
Freitas Branco: Orchestral Works, Vol. 1: Symphony No. 1 - Scherzo Fantasique - Suite Alentejana No. 1
Winter Finding (Composers Of Ireland Series, Volume 5)
Orchestral Works (Composers of Ireland Series Volume 6)
Levy: Cello Concerto - Symphony No. 3 - A Summer Overture
Kim: Violin Concerto / Dialogues / Cornet
Dr. Merryheart: IX. The Dance Of Merryheart - Merryhearts Tanz
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Dr. Merryheart: VI. Variation 5: Merryheart Fights A Dragon (Merryheart kampft mit dem Drache)
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Harty: Irish Symphony (An) / With the Wild Geese / In Ireland
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40 of the Best: Classical Music to Drive With
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Piano Concerto No. 2 in D Minor, Op. 23: II. Presto giocoso
Macdowell: Piano Concertos Nos. 1 and 2 / Witches' Dance
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Piano Concerto No. 2 in D Minor, Op. 23: I. Larghetto calmato
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Piano Concerto No. 1 in A Minor, Op. 15: I. Maestoso - Allegro con fuoco
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Piano Concerto No. 2 in D Minor, Op. 23: III. Largo - Molto allegro
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Piano Concerto No. 1 in A Minor, Op. 15: III. Presto
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2 Fantasiestucke, Op. 17: Hexentanz (Witches' Dance) Op. 17 No. 2
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Antiche danze ed arie per liuto (Ancient Airs and Dances), Suite No. 3, P. 172: III. Siciliana
Skona Grona Dagar (Beautiful Green Days)
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