ISRC FRZ118101492
Verified recording
FRZ118101492 is “Valtzes, Op. 64: No. 2 in C-Sharp Minor” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x228ecf23c73200be362f7d739c1ec0fb6b27c43b2f4064c10ef963c259c68fc9 and independently timestamped
in Bitcoin block 960418 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ118101492.
Recording identifiers
- ISRC
- FRZ118101492
- Title
- Valtzes, Op. 64: No. 2 in C-Sharp Minor
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x228ecf23c73200be362f7d739c1ec0fb6b27c43b2f4064c10ef963c259c68fc9
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T15:20:15+00:00
- Bitcoin block
- 960418
- Canonical record hash
sha256:d7a0abddb65b5f93ff6c173362c53f86a41544e4fa004ca57050d33a62ea9a9e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ118101492
- Bitcoin block existence check
- https://blockstream.info/api/block/960418
Full record
Track page: Valtzes, Op. 64: No. 2 in C-Sharp Minor · Machine-readable JSON-LD