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 0x13ad2098b6c95a7036671b41e27702164d365622d96811a6ba1f0eec3d9093c9. 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/bd7e8cc0-0367-4272-90e3-87ff15d04d29.json and https://artists.proofprofile.net/proofs/artist/bd7e8cc0-0367-4272-90e3-87ff15d04d29.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Schubert: Violin Sonata in A Major, D. 574; Fantasia in C Major, D. 934; Rondo in B Minor, D. 895 / R. Strauss: Violin Sonata in E-Flat Major, Op. 18, TrV 151 (Remastered 2023)
Fantasia in C Major, D. 934: III. Andantino - Remastered 2023
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 0x6f7b8ba0cbce3524153ae78942368762517677baaebf4252152221780122e553. 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/DEF056503133.
Violin Sonata in A Major, D. 574: I. Allegro moderato - Remastered 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a132c98471ec760e3a6a934f761673aba4ab392588e7f4c4b8e0bc9038035ac. 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/DEF056503141.
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
Violin Sonata in A Major, D. 574: II. Scherzo. Presto - Remastered 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x064c6ab10f872bb31173bc73d55a531366f7cfe86fb93578fbbb395e2ad22493. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/DEF056503142.
Violin Sonata in A Major, D. 574: III. Andantino - Remastered 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6713ad14bbd504348b9d9553ddd0820ecdaba2b4f14930f67cedc4d9fce0c91. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/DEF056503143.
Violin Sonata in A Major, D. 574: IV. Allegro vivace - Remastered 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26fc81a6ec2d3ae491eb2e2e229c4776d323b78938da9b40e03c896bdb1d473. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEF056503144.
Fantasia in C Major, D. 934: I. Andante molto - Remastered 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05704ca5b450cc17642260bf4db7b3ccaed7ccad478c21c9e315c26b65d5071c. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056503131.
Fantasia in C Major, D. 934: II. Allegretto - Remastered 2023
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x672c53db82ef067aea0bf430e32bfb10c37e071b09a21f57c8de037a3bacc344. 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/DEF056503132.
Vivaldi: Concerto No. 11 in D Minor, RV 565; Bach, J.S.: Violin Concerto No. 1 in A Minor, BWV 1041; Brandenburg Concerto No. 4 in G Major, BWV 1049
12 Concertos, Op. 3 "L'estro armonico" / Concerto No. 11 in D Minor for 2 Violins and Cello, RV 565: I. Allegro - Adagio spiccato e tutti - Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd4e7a6620cb45fd1aedb29a76eb21c5a535559940636f063857aa0825f398f. 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/DEF055709461.
Violin Concerto No. 1 in A Minor, BWV 1041: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b3404a454a43b129cdfaa32900f2f0fc664b446ef0ca35d9b53fd49323fc60. 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/DEF055304452.
Violin Concerto No. 1 in A Minor, BWV 1041: III. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131b4cc4df6e9ad0b9b6e39ba6f56ff884945b52863c964f3ff1bcb17d01e7dc. 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/DEF055304453.
12 Concertos, Op. 3 "L'estro armonico" / Concerto No. 11 in D Minor for 2 Violins and Cello, RV 565: II. Largo e Spiccato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9ab129a736a5fcc8748daa54d6e7b56649394154cddb6473e08ae5f59b325a. 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/DEF055709462.
12 Concertos, Op. 3 "L'estro armonico" / Concerto No. 11 in D Minor for 2 Violins and Cello, RV 565: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb242e5f8f153ac15591641198850e7006cd12a74f26f0aa9502d19c27c8163c6. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/DEF055709463.
Violin Concerto No. 1 in A Minor, BWV 1041: I. (Allegro moderato)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea45db3f447c92b99eaa0ad1ac5d7d7026ad2d8cae821c5c6e1d741f51cbba0. 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/DEF055304451.
Brandenburg Concerto No. 4 in G Major, BWV 1049: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9609060d65d63af79ae2c005f60cd84308a2c9048ce155b71ad9bc442824dba. 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/DEF055903401.
Brandenburg Concerto No. 4 in G Major, BWV 1049: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075e7ff43d4aa707a9b6e37ed3f65686234702e7b98c77c5916dedcc9801ac47. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055903402.
Milestones of a Violin Legend: Wolfgang Schneiderhan, Vol. 9
Tchaikovsky: Piano Concerto NO. 1, OP. 23 - Violin Concerto, OP. 35
Karajan Spectacular, Vol. 12 (Remastered 2023) [Live]
Vivaldi & Tartini: Concerti del settecento
Beethoven & Brahms: Works for Violin & Piano (Live)
Das Schaffen Johann Sebastian Bachs: Serie K. Instrumentalkonzerte (Stereo Version)
Milestones of a Violin Legend: Wolfgang Schneiderhan, Vol. 8
Beethoven: Violin Concerto, OP. 61 - Große Fuge, OP. 133
Beethoven, Brahms & Schumann: Piano Trio NO. 5, OP. 70 - Piano Trio No.1, OP. 8 - Piano Trio No.1, OP. 63 (Live)
Schneiderhan Meets Beethoven: Violin Sonatas Nos. 7 & 10 & Violin Concerto in G Major
Milestones of a Violin Legend: Wolfgang Schneiderhan, Vol. 7
Milestones of a Violin Legend: Wolfgang Schneiderhan, Vol. 6
Milestones of a Violin Legend: Wolfgang Schneiderhan, Vol. 4
Milestones of a Violin Legend: Wolfgang Schneiderhan, Vol. 3
Milestones of a Violin Legend: Wolfgang Schneiderhan, Vol. 2
Milestones of a Violin Legend: Wolfgang Schneiderhan, Vol. 10 (Live)
Milestones of a Violin Legend: Wolfgang Schneiderhan, Vol. 1 (Live)
Milestones of a Violin Legend - Wolfgang Schneiderhan, Vol. 5
Lucerne Festival Historic Performances: Wolfgang Schneiderhan (Live)
Ferenc Fricsay Conducts... Beethoven's Triple Concerto
Beethoven: Violin Concerto, David Oistrakh vs. Wolfgang Schneiderhan (Compare 2 Versions)
Beethoven: Complete Sonatas for Piano and Violin (Remastered Version)
Edwin Fischer Trio - Beethoven: "Ghost" and "Archduke" Trio
Johannes Brahms: Concerto for Violin and Orchestra In D Major, Op. 77, Ludwig van Beethoven: Concerto for Piano and Orchestra No. 3 In C minor, Op. 37
Brahms: Violin Concerto in D Major, Op. 77 - Beethoven: Piano Concerto No. 3 in C Minor, Op. 37 (Live)
Beethoven: Triple Concerto in C Major, Op. 56; Brahms: Double Concerto in A Minor, Op. 102
Violin Sonata No. 5 in F Major, Op. 24 "Spring": II. Adagio molto espressivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8a8e6a22e47d99d7ec9e6049337f0832c7a22bf69a4af803183cf5c60cfe4d. 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/DEF055901392.
Violin Concerto in D Major, Op. 61: II. Larghetto
12 Contredanses, Stage Music & Other Works
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129200465053526f5c7a8a1224c691de8af160cb668f30dba8ce0ea821638cd4. 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/DEF056203115.
Violin Concerto in D Major, Op. 61: III. Rondo. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773dd46a860ed15eb7f7792ecd170d9f2ae3110fe8bbf74410a2ab780a96d97a. 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/DEF056203116.
Wir entdecken Komponisten: Wolfgang Amadeus Mozart – Das Wunderkind
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b35777984230c8fd925fa4cab05567ca352829919b98d0609e6a3874cfb667. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/DEF058231606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24b94823b406c23faee6e52e515c476a804f87a3081daf28aeb3fdf86baa636. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/DEF058231611.
Violin Concerto In D, Op. 61: 3. Rondo. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688122d0f4e1beba3855949fdb78bf36559f6c266a094af6d84737e74aae231d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056203114.
Violin Concerto No. 2, in E Major, BWV 1042. Allegro
Festival Strings Lucerne & Rudolf Baumgartner
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf523703b654718fa55fe3cd37fc256210ccde694e0b30c116320c52c3f9e83. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80535063.