ISRC QMDA61377881
Verified recording
QMDA61377881 is “Piano Sonata in B-Flat Major, Op. 9 No. 1: II. Rondo - Allegretto grazioso” by Jan Ladislav Dussek,
registered on the CopyrightChains blockchain with CopyrightID
0x5ec92b8ca653d89b09359c5163307b268e8d4e430189523c382ea3208d205c77 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/QMDA61377881.
Recording identifiers
- ISRC
- QMDA61377881
- Title
- Piano Sonata in B-Flat Major, Op. 9 No. 1: II. Rondo - Allegretto grazioso
- Artist
- Jan Ladislav Dussek
- CopyrightID (CopyrightChains transaction hash)
0x5ec92b8ca653d89b09359c5163307b268e8d4e430189523c382ea3208d205c77
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:1114cf862834e68833403b1b1bcb5302198695ce6b5e9a54651781bf29d15136- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA61377881
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Piano Sonata in B-Flat Major, Op. 9 No. 1: II. Rondo - Allegretto grazioso · Machine-readable JSON-LD