ISRC CH0041601930
Verified recording
CH0041601930 is “Duet for Clarinet & Bassoon in C Major, WoO 27 No. 1: III. Rondo. Allegretto” by Ludwig van Beethoven,
registered on the CopyrightChains blockchain with CopyrightID
0xf12c541b01bed7565d2910f63264089539d70516cd6531babeb4256a9b149940 and independently timestamped
in Bitcoin block 960448 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041601930.
Recording identifiers
- ISRC
- CH0041601930
- Title
- Duet for Clarinet & Bassoon in C Major, WoO 27 No. 1: III. Rondo. Allegretto
- Artist
- Ludwig van Beethoven
- CopyrightID (CopyrightChains transaction hash)
0xf12c541b01bed7565d2910f63264089539d70516cd6531babeb4256a9b149940
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T18:48:12+00:00
- Bitcoin block
- 960448
- Canonical record hash
sha256:87e8089c3077a85ec2a298bd21245acfd66a0a12487b6ca4de6fbaac5fcdf3aa- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH0041601930
- Bitcoin block existence check
- https://blockstream.info/api/block/960448
Full record
Track page: Duet for Clarinet & Bassoon in C Major, WoO 27 No. 1: III. Rondo. Allegretto · Machine-readable JSON-LD