ISRC FRZ171100990
Verified recording
FRZ171100990 is “Horn Concerto No. 4 in E-Flat Major, K. 495: II. Romance andante cantabile” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0xca9464000e23fc5f76941903380e3d4fcfe911799df203618b9699c033aae449 and independently timestamped
in Bitcoin block 960429 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ171100990.
Recording identifiers
- ISRC
- FRZ171100990
- Title
- Horn Concerto No. 4 in E-Flat Major, K. 495: II. Romance andante cantabile
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0xca9464000e23fc5f76941903380e3d4fcfe911799df203618b9699c033aae449
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T16:07:24+00:00
- Bitcoin block
- 960429
- Canonical record hash
sha256:940b2324671c1f56ac1525158cee9bbebf8aadd749ea8978dc77a0d8e38ebaae- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ171100990
- Bitcoin block existence check
- https://blockstream.info/api/block/960429
Full record
Track page: Horn Concerto No. 4 in E-Flat Major, K. 495: II. Romance andante cantabile · Machine-readable JSON-LD