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 0x41612c17d0a4a0f56e830b56ab89d6caad96fb73588f6c55e09f0e6e8f155063. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e38708c5-841c-4d28-9057-1497f903f397.json and https://artists.proofprofile.net/proofs/artist/e38708c5-841c-4d28-9057-1497f903f397.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lucerne Festival Historic Performances: Pierre Fournier
Bartok: Piano Concerto No.3 / Ravel: Piano Concerto in G major
Le nozze di Figaro, K. 492 / Act 1: "Non più andrai"
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 0xa3f5b226e0b0114466cb2786f2f2408360aa0b76b257dbebec8c1240b8308b42. 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/GBF077110440.
Le nozze di Figaro, K. 492 / Act 2: "Voi che sapete"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e9f901e81779142174a23bea49fbba3a1be0fb66e48bda70d516ff666153c5. 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/GBF077110430.
Le nozze di Figaro, K. 492 / Act 3: "Crudel! perchè finora"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ef1cc40c001e145a9365e0f3d7568819465a78e681279a9655fc53fd888700. 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/GBF077113270.
Le nozze di Figaro, K. 492 / Act 4: "Giunse alfin il momento...Deh vieni non tardar"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e18edd1e5cfe528ad9a111c0027d16c1cfe8ba6d6d1218ba3596e241f5cd500. 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/GBF077113280.
Die Entführung aus dem Serail, K.384 / Act 1: "Konstanze, dich wiederzusehen...O wie ängstlich, o wie feurig"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4eab1be2e4c46018d31a2a9cdaf288fdd2a1948d0e670f0c63ee9c58d07829a. 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/GBF077113310.
Die Entführung aus dem Serail, K.384 / Act 3: "Ha, wie will ich triumphieren"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x192f194d1dade6e7de48c1987a0d6c50384afce51e5f1f5db3a2e64035c69ad0. 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/GBF077113340.
Die Zauberflöte, K.620 / Act 1: "Der Vogelfänger bin ich ja"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c615e9fefd46e129d61c3b8a9c5df555bda6f7220a15b577368710e4f108c6. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/GBF077110400.
Die Zauberflöte, K.620 - (E. Schikaneder) - Act 1: "Dies Bildnis ist bezaubernd schön"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48f8393dce3139939f56272e9c595d413496b2377c5ee754386ff514392c86d. 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/GBF077110420.
Così fan tutte, K.588 / Act 1: "Soave sia il vento"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608115d0b6d5f654b432349ae5c6ce031efea75f8b386d800966e612d28cb82f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBF077110550.
Don Giovanni, K.527 / Act 1: "Là ci darem la mano"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6003fbe5daf4fcf8d2fab75217d90b0f61253082947109345417f8880a9ec609. 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/GBF077110810.
Don Giovanni / Act 1: "Fin ch'han dal vino"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a78f2f34eb2f9e086d9eb5f4f0d82083bef607401c556183695cf4d41de94f. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:03:11Z), 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/GBF077110460.
Musik an westfälischen Adelshöfen, Vol. 1
Beethoven: Symphony No. 4 in B-Flat Major, Op. 60 & Symphony No. 7 in A Major, Op. 92 (Live)
Beethoven: Piano Concerto No. 5 in E-Flat Major, Op. 73 "Emperor" & Rondo in C Major, Op. 51 No. 1
Beethoven: Piano Concerto No. 4 in G Major, Op. 58 & Rondo in G Major, Op. 51 No. 2
Beethoven, Strauss & Bartók: Orchestral Works (Live)
Beethoven: Piano Concerto No. 2, Piano Sonata No. 9 & 6 Bagatelles
Dvořák: Symphony No. 9 "From the New World" (Live)
Viviani: Capricci Armonici Da Chiesa E Da Camera, Op. 4
Dvořák: Complete Symphonies; Tone Poems; Overtures; Requiem
Symphony No. 9 in E Minor, Op. 95, B. 178 "From the New World": II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661011e7f81fc0cf7596823ea600a52cad23b9772d64707f18d9105377390fb5. 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/GBF076610082.
Symphony No. 9 in E Minor, Op. 95, B. 178 "From the New World": III. Scherzo. Molto vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27d673743ff5a4cd59cf8b6adac9faf684bf76f5a6054e2cb090ce6f33546cc. 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/GBF076610083.
Mozart: Symphony No.36; "Eine kleine Nachtmusik"; March In C; Five Overtures
Mozart: Symphonies Nos.25, 29 & 35 - "Haffner"
Symphony No. 9 in E Minor, Op. 95, B. 178, "From the New World": 3. Scherzo. Molto vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd579a52dc17ead5faf2262251ec64925456016b03a879efb709c518ee40fff95. 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/GBF076110143.
Symphony No. 9 in E Minor, Op. 95, B. 178, "From the New World": 4. Allegro con fuoco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300508201eca144ec5dc8b5806da84c118a25c61e84722ad924fe569f245d666. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBF076110144.
Symphony No. 8 in G Major, Op. 88, B.163: 1. Allegro con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa67d93c0c46bf7ffe720a1a4865ac5ae97e3b7a0894a19b43025c025a441672. 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/GBF076310891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa67d93c0c46bf7ffe720a1a4865ac5ae97e3b7a0894a19b43025c025a441672. 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/GBF076310891.
Symphony No. 9 in E Minor, Op. 95, B.178: 3. Scherzo (Molto vivace)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27d673743ff5a4cd59cf8b6adac9faf684bf76f5a6054e2cb090ce6f33546cc. 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/GBF076610083.
Symphony No. 6 in D Major, Op. 60, B.112: 2. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f72a3942b9e663a351baec8bc90170d3fc91f8cc281323df3064646698c1eb6. 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/GBF076510032.
Symphony No. 7 in D Minor, Op. 70, B.141: 1. Allegro maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0204d098e726fd0fa6cf96e153fb505a350eb93e844f26c105ddbb655358a5f3. 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/GBF076411051.
Symphony No. 7 in D Minor, Op. 70, B.141: 2. Poco adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb43643863c62d8ea936d180bd6117e22218c22829e6fd0485fef37e6598d1f1. 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/GBF076411052.
Symphony No. 7 in D Minor, Op. 70, B.141: 3. Scherzo (Vivace)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a69956c6a9dedf1b0010746f69c62dc347025a4ffc48ec6558d66accdc4c5e. 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/GBF076411053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27d673743ff5a4cd59cf8b6adac9faf684bf76f5a6054e2cb090ce6f33546cc. 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/GBF076610083.
Mozart: Piano Concertos Nos.20,23,24,26 & 27
Symphony No. 1 in C Minor, Op. 3, B.9 - "The Bells of Zlonice": 2. Adagio di molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd13869d53f50167c2cd406b04417aeef66d87f47b7fbeda8b43d2aa18c146d9. 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/GBF076610982.
Symphony No. 4 in D Minor, Op. 13, B.41: 2. Andante sostenuto e molto cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1618c4aa0204ff257a1741efab7810e5340ea4c7a1f897ee11302aae9fec596. Chain 2 (Bitcoin): anchored in block 957034 (2026-07-07T11:52:37Z), 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/GBF076610032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb43643863c62d8ea936d180bd6117e22218c22829e6fd0485fef37e6598d1f1. 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/GBF076411052.
Symphony No. 9 in E Minor, Op. 95, B.178: 2. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661011e7f81fc0cf7596823ea600a52cad23b9772d64707f18d9105377390fb5. 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/GBF076610082.
Symphony No. 1 in C Minor, Op. 3, B.9 - "The Bells of Zlonice": 3. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55f28fe1912dabddb0c5f4522022579867d55a93a5b729e16993464f2ae0c1b. 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/GBF076610983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a69956c6a9dedf1b0010746f69c62dc347025a4ffc48ec6558d66accdc4c5e. 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/GBF076411053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27d673743ff5a4cd59cf8b6adac9faf684bf76f5a6054e2cb090ce6f33546cc. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076610083.
Symphony No. 1 in C Minor, Op. 3, B.9 - "The Bells of Zlonice": 4. Finale (Allegro animato)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe11ba79966f471d0552bc25b8deb47f1d558d57c764f54b74541cbcca628b3. 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/GBF076610984.
Symphony No. 4 in D Minor, Op. 13, B.41: 4. Finale (Allegro con brio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d476e0c3ded3f2dbe878034a151f7b755ed46aefbcc7fb3deb0c8c0fe3c4439. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBF076610034.
Symphony No. 3 in E Flat Major, Op. 10, B.34: 2. Adagio molto, tempo di marcia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8a41806cb0652cf878a214fd460c1e550ae57e480516b0570ac70a09492655. 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/GBF076611002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa67d93c0c46bf7ffe720a1a4865ac5ae97e3b7a0894a19b43025c025a441672. 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/GBF076310891.
Symphony No. 5 in F Major, Op. 76, B.54: 3. Scherzo. Allegro scherzando
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3961bd485b037f6187baba8eab24471abf6dd7a3b3744891ee6cf4103213ccf2. 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/GBF076510003.
Symphony No. 8 in G Major, Op. 88, B.163: 4. Allegro ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9433e2e4ba22897c633f40ed5d5fa74af08e6969bae85e585f816b7b3b5eb871. 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/GBF076310894.
Symphony No. 4 in D Minor, Op. 13, B.41: 3. Scherzo (Allegro feroce)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa0392a0ebe434979b7c9899ed16da925aca0081d644d16161018b784d7aaf5. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T17:43:15Z), 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/GBF076610033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1130e616fb81d094d08db1ea80a3edd5ea0eeac7ba9f1786318f070e8271efec. 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/GBF076441101.
Don Pasquale / Act 1: Quel guardo di cavaliere ... So anch'io la virtù magica
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e651ca5c3d262e4a9decd754fddc7a36f5552a4458ee745e6dbc81b74fbcb2. 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/GBF076441106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e013943a4c14b4bef0ad649c9e9c04b98c3fb5e660174d6c41a942cc28c454. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBF077140202.
Stabat Mater: 7. Fac ut portem Christi mortem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3747f30ca8fece46b8445529217b5452fc554ab87be732338e62ffa76ad39c. 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/GBF077140207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66d20661d3f22cce2de7b7a2aacbcf08ce72b1e3a4e56594ddaab711e4f70f8. 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/GBF077140209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a777bcc04478b7ac38215b87815ad22b03b7236a0a3b4708c3ba536492778c. 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/GBF077140210.
Kodaly: Psalmus Hungaricus; Missa Brevis; Pange Lingua; Psalm 114; Hymn of Zrinyi; Laudes Organi. Bartok: Cantata profana
Lobgesang auf die feierliche Johannisloge: O heiliges Band der Freundschaft, K.148
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Dir, Seele des Weltalls, K.429: 1. "Dir, Seele des Weltalls"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2c9f0f21c19d83715725ac17955f3200a9067eed739215ee9f099bfa474f83. 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/GBF076810611.
Gesellenreise: Die ihr einem neuen Grade, K.468
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38e0914f38e51896f829ff5781b9d8d97e3483998525976bd003adccab5ae71. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/GBF076810613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5522284083aa214e5b2838dee322904a5b5d7c590314d18e2730986d38d82f9. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBF076810614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f1db50a0cd914a2f59708fddd5443839c41c6f12ba4d1270a5123531803ca2. 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/GBF076810615.
Zur Eröffnung der Freimaurerloge: Zerfliesset heut', geliebte Brüder, K.483
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e659a453bf096c6cac53ce81fc594275adfe00256f39cee7213629ed34fb1c. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076810616.
Laut verkünde unsre Freude, K.623: 1a. Coro - "Laute verkünde unsre Freude"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccdbd08d8349f142d15f51efd69e3560e52ec0460936fe054e70aecfbb7535bc. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBF076810621.
Laut verkünde unsre Freude, K.623: 3/4: Recit/Duo: "Wohlan, ihr Brüder...Lange sollen..."
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0096056104d9a17d0ccc56f31862043012ffcb6c99ba54b3ff76ddbf5e58b2ab. 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/GBF076810623.
Lasst uns mit geschlungnen Händen, K.623a
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Brahms: Serenade Nr.1, Op.11 & Nr.2, Op.16
Serenade No. 1 in D, Op. 11: 3. Adagio non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8499ea36f04adbaf89775861dc1d11bb0a8e61db31f3b09c0ffda9d103b2980f. 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/GBF076710353.
Serenade No. 1 in D, Op. 11: 5. Scherzo (Allegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9111a55925390939c82399a223760f91ba9418aa8e091d5035a3a29ec4421b3. 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/GBF076710355.
La clemenza di Tito, K.621 / Act 1: "Come ti piace imponi"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f649498808038f76717efe599bc0e158566317cbd921803172b00c348ad9150. 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/GBF076740802.
La clemenza di Tito, K.621 / Act 1: "Serbate, oh Dei custodi"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe411107d6eff1b144f6e448b67676c363b4e7059ff701fcdfb116892ce6833. 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/GBF076740807.
La clemenza di Tito, K.621 / Act 2: "Tu, è ver, m'assolvi, Augusto"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e9067e907f642be293f80ee4884157ac7f76d4be556376a41ff8b68d7c2c02. 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/GBF076740838.
Mozart: Piano Concertos Nos. 8 & 9; Rondo, K.386
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608115d0b6d5f654b432349ae5c6ce031efea75f8b386d800966e612d28cb82f. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077110550.
Best of Opera - Die 50 größten Opern-Arien
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e9f901e81779142174a23bea49fbba3a1be0fb66e48bda70d516ff666153c5. 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/GBF077110430.
Opera Arias - Nessun Dorma - Casta Diva - O Mio Babbino Caro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6003fbe5daf4fcf8d2fab75217d90b0f61253082947109345417f8880a9ec609. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:07:00Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077110810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c615e9fefd46e129d61c3b8a9c5df555bda6f7220a15b577368710e4f108c6. 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/GBF077110400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e013943a4c14b4bef0ad649c9e9c04b98c3fb5e660174d6c41a942cc28c454. 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/GBF077140202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6003fbe5daf4fcf8d2fab75217d90b0f61253082947109345417f8880a9ec609. 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/GBF077110810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f5b226e0b0114466cb2786f2f2408360aa0b76b257dbebec8c1240b8308b42. 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/GBF077110440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608115d0b6d5f654b432349ae5c6ce031efea75f8b386d800966e612d28cb82f. 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/GBF077110550.