ISRC ES7141500252
Verified recording
ES7141500252 is “Violin Sonata No. 4 in E Minor, Op. 1, K. 304: II. Tempo di menuetto (18th c.)” by Wolfgang Amadeus Mozart,
registered on the CopyrightChains blockchain with CopyrightID
0xa9b2d9eb81f3bdd80d75383616c6f294a4ebf1375e2f6a845abe7dc10aca4412 and independently timestamped
in Bitcoin block 960264 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES7141500252.
Recording identifiers
- ISRC
- ES7141500252
- Title
- Violin Sonata No. 4 in E Minor, Op. 1, K. 304: II. Tempo di menuetto (18th c.)
- Artist
- Wolfgang Amadeus Mozart
- CopyrightID (CopyrightChains transaction hash)
0xa9b2d9eb81f3bdd80d75383616c6f294a4ebf1375e2f6a845abe7dc10aca4412
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T14:36:16+00:00
- Bitcoin block
- 960264
- Canonical record hash
sha256:9730f16a1a32db753d38b28e365ac070cf08dfe8130444ca048ec60a2ee17d04- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES7141500252
- Bitcoin block existence check
- https://blockstream.info/api/block/960264
Full record
Track page: Violin Sonata No. 4 in E Minor, Op. 1, K. 304: II. Tempo di menuetto (18th c.) · Machine-readable JSON-LD