SWR Symphonieorchester Baden-Baden und Freiburg
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 0x2d363d24fe8029ace04c542a96c6afb7360793256aa1de2881985d4a04499d0e. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/37b9da30-1552-41a9-8add-482abdb56225.json and https://artists.proofprofile.net/proofs/artist/37b9da30-1552-41a9-8add-482abdb56225.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nielsen: Violin Concerto, Op. 33, FS 61 (Live)
Mozart: Symphonies Nos. 34, 36, 38, 39 & 41
Chopin: Piano Concerto No. 2 in F Minor, Op. 21
Mozart: Piano Concerto No. 22 in E-Flat Major, K. 482
Mozart, Beethoven, Ravel & Others: Works
Beethoven: Symphony No. 5 in C Minor, Op. 67
Symphony No. 5 in C Minor, Op. 67: IV. Allegro
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 0x7c77fce63ad264210ea6767631b45391b6c6e74162faf656e22680137bd712cc. 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/DES806104168.
Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd98ac2457ea9e33acd4e1145ffda7a60df2b67bf894f4a2d8952de3260a46659. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DES806104165.
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
Symphony No. 5 in C Minor, Op. 67: II. Andante con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddd0490116f19afd9f7a8390bb547627270cae5496fa4266263ebba67d24049. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/DES806104166.
Symphony No. 5 in C Minor, Op. 67: III. Scherzo. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761a5aa40887d1d7d9816f598b96f17097fd352282d56f293221872816873046. 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/DES806104167.
Schubert: Symphony No. 9 in C Major, D. 944 "Great"
R. Schumann: Symphony No. 1 in B-Flat Major, Op. 38 "Spring"
Beethoven: Symphony No. 3 in E-Flat Major, Op. 55 "Eroica"
Beethoven: Symphony No. 6 in F Major, Op. 68 "Pastoral"
Beethoven: Symphony No. 7 in A Major, Op. 92
Bruckner: Symphony No. 6 in A Major, WAB 106 - Hartmann: Symphony No. 6
Rossini, R. Strauss, Ravel & Others: Works (Live)
Sibelius: Symphony No. 5 in E-Flat Major, Op. 82