The NDR Radiophilharmonie is a German radio orchestra, affiliated with the Norddeutscher Rundfunk (NDR) in Hanover, the capital of Lower Saxony. The orchestra principally gives concerts in the Großer
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 0x3432cf7b54cb14cd4f83d8d70064e2f4d07cec07ed86cabe899818d959385b63. 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/558ebb43-76fe-4617-b729-7b3536d820d0.json and https://artists.proofprofile.net/proofs/artist/558ebb43-76fe-4617-b729-7b3536d820d0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Goldberg Variations, BWV 988: Var.1 (Arr. for Violin, Viola, Cello, String Orchestra & Harpsichord by Andreas N. Tarkmann)
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 0xfedcecfd1c7d7a1bcd3e57f24b118ff4d5c44359b447551c068aff40ddcd97a0. 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/DEE862001525.
New Goldberg Variations on a Theme of J.S. Bach for Violin & String Orchestra: II. The Elements
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5c4db8df9b2fa7830a5b5670fa8819d95dd9616ad2b36188bba834713be5a6. 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/DEE862001541.
New Goldberg Variations on a Theme of J.S. Bach for Violin & String Orchestra: III. The Moocher
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b5e261984f4f5578bbf3d3ab5da901d52620fda7e638a01383c15f55301083b. 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/DEE862001542.
Goldberg Variations, BWV 988: Var.13 (Arr. for Violin, String Orchestra & Harpsichord by Andreas N. Tarkmann)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c28ffcdf852fd81630ac28cf6b86468c3b25664e2faaa8fa5741b77a836350. 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/DEE862001533.
Sleepless after J.S. Bach for Violin & String Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18acaeafa438cd4ed497ad7af0b66f2056b7b49a9631ecc216f3289c8e9c3829. 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/DEE862001534.
Goldberg Reflections Aria for Violin, String Orchestra & Harpsichord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d0cc72bd23671760dcc185c78809f295e8fe608efa65a15f90b9130418aadb. 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/DEE862001535.
GoldBergHain (Quodlibet on "Kraut und Rüben haben mich vertrieben") for Violin & String Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cb72a6ac1ed26416a8a401ae0a7893f00db4eb503e8f90ce8d2edcfea62e80. 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/DEE862001551.
Ben-Haim: Symphony No. 2 & Concerto grosso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb0d9bb403acc01022b66421455f75be6aa9353f5c59ee46542adbaf48e1764. 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/DEB201067701.
Symphony No. 2: IV. Finale. Allegro deciso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7c7bf8aa4d88ca830e217213996e2eef88115a5af4ae4c8e420a932dec736c. 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/DEB201067704.
Enescu: Violin Concerto & Fantaisie for Piano & Orchestra
Tal: Symphonies Nos. 1-3 & Festive Vision
Bruch: Violin Concerto No. 3, Romanze & Konzertstück for Violin & Orchestra
Enna: Violin Concerto, Overture Cleopatra & Symphonic Fantasy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cb72a6ac1ed26416a8a401ae0a7893f00db4eb503e8f90ce8d2edcfea62e80. 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/DEE862001551.
Classical Music Essentials - Best of Orchestral and Piano Classics
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6336d57f7bde42f86e8fc0623b3e4425115ea5eb20afb1d3dab6544259ab42. 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/DEE861903699.
Zelenka: Laudate pueri, ZWV 81: I. Laudate pueri
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1a8661e561a4be9c08b7c26dd2c96b8b1429615c7d6369fa6bab139285f9c57. 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/GBAYC2202286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3428d3de6fc790805ae5af332006b5ad678a9ee52c55e4edd3aae6741b70a92. 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/DEE861902686.