ISRC FRZ330103050
Verified recording
FRZ330103050 is “Piano Trio No. 44 in E Major, Hob. XV: 28: II. Allegretto” by Joseph Haydn,
registered on the CopyrightChains blockchain with CopyrightID
0x4f9ee3a018b88c7de1d7129c2ec7e9efcc2c9a7559f5dc999cac5e5367ff5451 and independently timestamped
in Bitcoin block 956889 on 2026-07-06.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ330103050.
Recording identifiers
- ISRC
- FRZ330103050
- Title
- Piano Trio No. 44 in E Major, Hob. XV: 28: II. Allegretto
- Artist
- Joseph Haydn
- CopyrightID (CopyrightChains transaction hash)
0x4f9ee3a018b88c7de1d7129c2ec7e9efcc2c9a7559f5dc999cac5e5367ff5451
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-06T06:56:49+00:00
- Bitcoin block
- 956889
- Canonical record hash
sha256:780d22a9e473219e3a3fd70325ad1c4fa3fc88e56ea13765058350717ab93d7a- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ330103050
- Bitcoin block existence check
- https://blockstream.info/api/block/956889
Full record
Track page: Piano Trio No. 44 in E Major, Hob. XV: 28: II. Allegretto · Machine-readable JSON-LD