ISRC GBF077940406
Verified recording
GBF077940406 is “Mazurka No. 30 in G Major, Op. 50 No. 1. Vivace” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x89c7628abdabdcb82c73a58c1aa36f6862a1a03e5847be2e114cd04bf7e3b667 and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077940406.
Recording identifiers
- ISRC
- GBF077940406
- Title
- Mazurka No. 30 in G Major, Op. 50 No. 1. Vivace
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x89c7628abdabdcb82c73a58c1aa36f6862a1a03e5847be2e114cd04bf7e3b667
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:8e16e3036b5f6b9b8f5fd3f99d10425ab8e193930120436834ea6a4065eb6562- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077940406
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: Mazurka No. 30 in G Major, Op. 50 No. 1. Vivace · Machine-readable JSON-LD