ISRC FRZ119203040
Verified recording
FRZ119203040 is “Chopin: Variations on Mozart's "Là ci darem la mano", Op. 2: Variation V. (b) Alla polacca” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x657099b84b787fab11436c90ba7dcdf1185d1e699366bff6d6ec3f50c3c4ae64 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/FRZ119203040.
Recording identifiers
- ISRC
- FRZ119203040
- Title
- Chopin: Variations on Mozart's "Là ci darem la mano", Op. 2: Variation V. (b) Alla polacca
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x657099b84b787fab11436c90ba7dcdf1185d1e699366bff6d6ec3f50c3c4ae64
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T03:15:04+00:00
- Bitcoin block
- 960340
- Canonical record hash
sha256:85b7e7abec31fd5b8b58ea40ee6be754f1112450ec44f6df5a84de442ea8289c- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119203040
- Bitcoin block existence check
- https://blockstream.info/api/block/960340
Full record
Track page: Chopin: Variations on Mozart's "Là ci darem la mano", Op. 2: Variation V. (b) Alla polacca · Machine-readable JSON-LD