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 0x00bb6aeb250fcb21e1577a1af18ba949dbca154e5ea93f37391a40091682b5d5. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/257803b9-31a5-4c72-9df0-8e95c44a8d95.json and https://artists.proofprofile.net/proofs/artist/257803b9-31a5-4c72-9df0-8e95c44a8d95.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xf7ad4daa1a7859c1f288e67c6b458605891ffbde971dab78afbee20f471d2c14. 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/FRZ117706388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6d059e5e92d0376c88983aa37522da60af86045c2cb223d9804b53f51c15cf. 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/GBAYC8800874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8390e789c826e5f6f1df352008cf3c4a62996a5f4ba52fb3c1197df4557648. 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/GBAYC1900116.
Waldszenen, Op. 82: VII. Der Vogel als Prophet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8f49d7f355d25f1b7e352236c7e52e326b89d9179b1ea00a6001b4f30a89b5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBAYC9004352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbca953d90f733135961ee7ede094a46103da8a0aed1e12a7d8a637f4832d11dd. 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/FRZ117306437.
Albumblätter, Op. 124: No. 6, Wiegenliedchen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67b96c6d9ca91ed6c9117118091146975420e7d89d960748f1f57f50e0917c2. 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/FRZ207500100.
Cello Concerto in A Minor, Op. 129: III. Sehr lebhaft
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552c4415293433ba4cc9fea6262e7239d1827230f5feac2e1088d62443dd208a. 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/GBAYC9705055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492e2cbabc61efe53a087e58ea8f01772e9b58cf4c38a90793d92cbc3a8fa2ae. 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/GBAYC8700626.
Paganini, N.: Violin Music, Vol. 2 (Heifetz, Kreisler, Menuhin, Ricci, Vecsey) (1930-1950)
Beethoven, Strauss, Bizet & Others: Songs (Live)
Violin Sonata No. 5 in F Major, Op. 24 "Spring": I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd179517168972837e4adb87e1e499a8ec399e8ca483bbf036d0b99095d2094c. 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/GBAYC8500740.
Violin Concerto in A Minor, BWV 1041: I. (No Tempo Indication)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1b32b7eb9f17443991d6a2ec57a0beb3ff98684932d65092dbd7d1b495fe65. 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/GBAYC8200226.
Brahms: 28 Lieder (Les indispensables de Diapason)
Romantische klassische Musik von Schumann
Brahms, Schubert, R. Strauss & Others: Art Songs (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaedf0b603af56e392f62e8b8c34fce945631314d7630df84e782b500c8181dfa. 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/FIFIN9200700.
Tchaikovsky: Violin Concerto in D Major, Op. 35: I. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacaed5d645865630dee8b0ec4b94c0f694b758ba99f99e4e585245e5bf4882b9. 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/GBAYC0600796.
Classical Music Inspired by Romani Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb971a7e47b2328812c8c3270b52a6d703a2c1cbf62853513b0cf355c9ee3839f. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/GBPFW0800079.
Paganini / Arr. Auer: 24 Caprices, Op. 1: No. 24 in A Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0443e7a093da1240440a564197f3cf0c212364f4800c3e1a184788af3ae47a3d. 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/GBAYC9300818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ae38c25e062f23926a6df6681ee20cae262a46ee873ffb49889a1061cb6b023. 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/FRZ209301250.
Szymon Goldberg Edition, Vol. 2: Commercial Recordings (1932-1951)
The Complete Recordings, Vol. 8 (1926-1927)
Beethoven / Mendelssohn: Violin Concertos, Vol. 1 (Kreisler) (1926)
The Four Seasons, Violin Concerto No. 1 in E Major, RV 269 "Spring": I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3278f8021b76a7180c6680d7c50129230202a82b0a0010cd7161203066622b. 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/GBAYC7900176.
Romance for Violin and Orchestra in G Major, Op. 40
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb409ad96c64806851cdd2b319052040c959069ba4e3f12f18fff826b23c5c8c. 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/GBAYC9201352.
Violin Concerto in E Minor, Op. 64: I. Allegro molto appassionato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c99ff9d6cf3255b31f4f9eb3347ca56c56715067e417cef4840097dc5a78766. 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/DEC628500525.
Violin Concerto in D Major, Op. 35: I. Allegro moderato - Moderato assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37aba371825f7175f592368bfd6bdc3fde65f5344da56dfe10e45160eeae1a46. 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/GBAYC1900026.
The Four Seasons, Violin Concerto No. 4 in F Minor, RV 297 "Winter": III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bcd1f0b12b4678023d8939b383a956e3205f6651103b63af74786228079a717. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBAYD7200058.
Concerto for 2 Violins in D Minor, BWV 1043:: II. Largo, ma non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d9f0f697942f9fe1fb5cc332786898079a47eb945af6e0489073470b50a8639. 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/GBAYC9003326.
Salzburger Liederabende 1956-2010 (Live)
Mozart: Don Giovanni, K. 527 - Schubert: Lachen und Weinen, Op. 59 No. 4, D. 777, Im Fruhling, Op. 101 No. 1, D. 882, Du bist die Ruh, Op. 59 No. 3, D. 776 & Gretchen am Spinnrade, Op. 2 D. 1
Introduction and Rondo capriccioso, Op. 28
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Elgar: Pomp and Circumstance, Enigma Variations, Concerto pour violoncelle & La Capricieuse
R. Strauss, Sibelius & Prokofiev: Violin Works