ISRC FRZ171100960
Verified recording
FRZ171100960 is “Horn Concerto No. 3 in E-Flat Major, K. 447: II. Romance larghetto” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0x6630b24bcd0a1c5dcb9d9ae32a9b37efbf3f9dd999f7f8e2189da253cac80a78 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/FRZ171100960.
Recording identifiers
- ISRC
- FRZ171100960
- Title
- Horn Concerto No. 3 in E-Flat Major, K. 447: II. Romance larghetto
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0x6630b24bcd0a1c5dcb9d9ae32a9b37efbf3f9dd999f7f8e2189da253cac80a78
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:b799c9f0b8446b62f2a72c4d77c581608637e0bca80ff587549a0bc2cdf0738b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ171100960
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Horn Concerto No. 3 in E-Flat Major, K. 447: II. Romance larghetto · Machine-readable JSON-LD