ISRC FRUM72300830
Verified recording
FRUM72300830 is “12 Études, Op. 25: No. 7 in C-Sharp Minor (Arr. for Cello and Piano by A. Glazunov)” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xd36e977d50f5ffe50a9b17e382a657ff7127fe834ce18e9ea12a6c6130f25ad1 and independently timestamped
in Bitcoin block 960138 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM72300830.
Recording identifiers
- ISRC
- FRUM72300830
- Title
- 12 Études, Op. 25: No. 7 in C-Sharp Minor (Arr. for Cello and Piano by A. Glazunov)
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xd36e977d50f5ffe50a9b17e382a657ff7127fe834ce18e9ea12a6c6130f25ad1
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T19:35:34+00:00
- Bitcoin block
- 960138
- Canonical record hash
sha256:24a555e9d2d9bb422a0d0105b8cf785b95222c748fc0ee4d69d5da1a3eab8451- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM72300830
- Bitcoin block existence check
- https://blockstream.info/api/block/960138
Full record
Track page: 12 Études, Op. 25: No. 7 in C-Sharp Minor (Arr. for Cello and Piano by A. Glazunov) · Machine-readable JSON-LD