1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x0594c49ab29298b5e956c6e870e628ce0a7a012a12e37b61d9f17c5559e0db7e. 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/3236eb24-d33d-4ec5-9c99-39dd063bf73a.json and https://artists.proofprofile.net/proofs/artist/3236eb24-d33d-4ec5-9c99-39dd063bf73a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Saint-Saëns: Cello Concerto No.1; Cello Sonata No.1; Suite, Op. 16; Le Cygne From Le Carnival Des Animaux; Allegro Apassionato, Op. 43; Romance In F Major, Op. 36
Cello Concerto No. 1 in A Minor, Op. 33: I. Allegro non troppo
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1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd78156a6b3f2e4554e771d1c06b8f720af2b626e9fa6ee20e59a4d3c7bb6e6d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3EZFxHJWH7HssnoF2tFjOb.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3EZFxHJWH7HssnoF2tFjOb.
Cello Concerto No. 1 in A Minor, Op. 33: II. Allegretto con moto
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc8ef6a3496b6c2fe20570cec71d8edf136d380f385887d5218413d99817b4c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2Ym1tSSVGgSbhXWMzhMuNZ.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2Ym1tSSVGgSbhXWMzhMuNZ.
Cello Concerto No. 1 in A Minor, Op. 33: Tempo primo (H)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd32bbdbf8b34304e549fdce2d4935b7cdf7f07ce1589d92a8393145e3218b45. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6O7NBRab2hs6A9XXX7BvJ7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6O7NBRab2hs6A9XXX7BvJ7.
Le carnaval des animaux, R. 125: Le cygne
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b4103747d4cfd20be5a2691d072025e5f18b66a4e15fe88dfb92003b042fee. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6IOSF3p9byD5l3R9fZUcH9.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6IOSF3p9byD5l3R9fZUcH9.
Allegro appassionato for Cello and Orchestra, Op. 43
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a30ef4df50d7533243f308184b22b6538962ceac04d5045c397632b44020568. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4r17uaYL0jTPORdUJ2zS0x.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4r17uaYL0jTPORdUJ2zS0x.
{"copyright_id":"0x1bf86e49f7c847e2c88afb132ce0c498b681132116fccbbe52c87be98dfcf05d","isrc":"DEF059704390","name":"Romance in F Major, Op. 36, R. 195","registered_at":"2026-06-07T08:04:08Z","spotify_id":"65knCkHINqXjkXQ9l2QoDk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf86e49f7c847e2c88afb132ce0c498b681132116fccbbe52c87be98dfcf05d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/65knCkHINqXjkXQ9l2QoDk.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/65knCkHINqXjkXQ9l2QoDk.
Suite For Cello And Orchestra, Op. 16: I. Prélude (moderato assai)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc08a059c872c653ccc1daed305c8ad9e04a50869b342adde8f4736fd98bf2be0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/63A3tvr3ZGyrSYS5lSAtk1.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/63A3tvr3ZGyrSYS5lSAtk1.
Suite for Cello and Orchestra, Op. 16: II. Sérénade (andantino)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266d859622111aa451aa2d780cb574044b6151a8b22adcba3320fa3c78a3d832. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3bDoffkETieD3QAox8c1QX.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3bDoffkETieD3QAox8c1QX.
Suite for Cello and Orchestra, Op. 16: III. Gavotte (allegro non troppo)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7b67f69513380067cea314690fb7e0e78e0e83fa3f263d21fe2c987191e9fe. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2gEKudg9WYYTRm3e2MDkf1.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2gEKudg9WYYTRm3e2MDkf1.
Suite for Cello and Orchestra, Op. 16: IV. Romance (molto adagio)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405fbd6b81e7fde1dca3de7ead4b17ad4c151a4b95071617a376223760324728. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/55vBLAngc06JU6uGDdhN7W.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/55vBLAngc06JU6uGDdhN7W.
Suite for Cello and Orchestra, Op. 16: V. Tarantelle (presto non troppo)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772a61225e9278715a7084a529b00af85b740e55d9f01d01da1d9cbca9184e64. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6M3TyHkgr5c60VhG1rgwzN.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6M3TyHkgr5c60VhG1rgwzN.
Sonata for Violoncello and Piano No. 1 in C Minor, Op. 32: I. Allegro
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a32383b5c10fbe88bf630cd7c93287d1974cca6c26e3040f4b95a08c27d5fb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1lElwJg8OULWGPD0MohpSr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1lElwJg8OULWGPD0MohpSr.
Sonata for Violoncello and Piano No. 1 in C Minor, Op. 32: II. Andante tranquillo sostenuto
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab3269007cf2c7b4765e486816b57c5ff938da36b73498335be53bea59eac7b9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7Ieu6gmmHdncYQSS1KbjVM.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7Ieu6gmmHdncYQSS1KbjVM.
Sonata for Violoncello and Piano No. 1 in C Minor, Op. 32: III. Allegro moderato
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50636cc1226056249012c48df21a5eb57a7b92e4ffe1e1288614d51012878731. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0i83cKnLHJcOSv7clBvpOm.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0i83cKnLHJcOSv7clBvpOm.
Schwanengesang, D. 957: Ständchen "Leise flehen meine Lieder"
Schwanengesang, D. 957: Ständchen - Performed on Cello & Piano
New Classics – zum Entspannen und Genießen
Schubert: Du bist die Ruh, Op. 59/3, D. 776
Mischa Maisky - Fauré, Mendelssohn, Saint Saëns
Cello Works: Mischa Maisky. Mendelssohn & Schubert