ISRC QM7281535382
Verified recording
QM7281535382 is “Horn Concerto in E-Flat Major, K.447: II. Romance. Larghetto” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0xe6cd9f957e1e5dbc187639d525a458f972889e40170022d5f8416ec8cb95c343 and independently timestamped
in Bitcoin block 960340 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281535382.
Recording identifiers
- ISRC
- QM7281535382
- Title
- Horn Concerto in E-Flat Major, K.447: II. Romance. Larghetto
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0xe6cd9f957e1e5dbc187639d525a458f972889e40170022d5f8416ec8cb95c343
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T03:15:04+00:00
- Bitcoin block
- 960340
- Canonical record hash
sha256:a11d700a66877ec64858a920144bce62fa6c7a908427efe734fbed52e2f50e8d- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281535382
- Bitcoin block existence check
- https://blockstream.info/api/block/960340
Full record
Track page: Horn Concerto in E-Flat Major, K.447: II. Romance. Larghetto · Machine-readable JSON-LD