ISRC FRZ140530060
Verified recording
FRZ140530060 is “Waltzes, Op. 70, B.138: No. 2 in F Minor. Tempo giusto” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x8a958046f27febd296b581be400d0693f63942e970ed15f6e52af85cc6a9dca8 and independently timestamped
in Bitcoin block 959159 on 2026-07-22.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140530060.
Recording identifiers
- ISRC
- FRZ140530060
- Title
- Waltzes, Op. 70, B.138: No. 2 in F Minor. Tempo giusto
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x8a958046f27febd296b581be400d0693f63942e970ed15f6e52af85cc6a9dca8
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-22T17:48:40+00:00
- Bitcoin block
- 959159
- Canonical record hash
sha256:ae39225b7bf9acbbe2b6043a5e6292d829a99dca912d644c1ecaeae74e49d237- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ140530060
- Bitcoin block existence check
- https://blockstream.info/api/block/959159
Full record
Track page: Waltzes, Op. 70, B.138: No. 2 in F Minor. Tempo giusto · Machine-readable JSON-LD