ISRC QMDA61377857
Verified recording
QMDA61377857 is “Piano Sonata in C Major, Op. 39 No. 2: II. Andante quasi larghetto” by Jan Ladislav Dussek,
registered on the CopyrightChains blockchain with CopyrightID
0xdbb0493a04c792390556d439952b9d73f27a91fe259492382112d091f17344e3 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA61377857.
Recording identifiers
- ISRC
- QMDA61377857
- Title
- Piano Sonata in C Major, Op. 39 No. 2: II. Andante quasi larghetto
- Artist
- Jan Ladislav Dussek
- CopyrightID (CopyrightChains transaction hash)
0xdbb0493a04c792390556d439952b9d73f27a91fe259492382112d091f17344e3
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:0ed5893d37b9691e58d027dcc3b83474f47a6a578d3c57e4dbfe5d56f36ba22b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA61377857
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Piano Sonata in C Major, Op. 39 No. 2: II. Andante quasi larghetto · Machine-readable JSON-LD