ISRC GBAYC9203779
Verified recording
GBAYC9203779 is “Polonaise No. 6 in A-Flat Major, Op. 53 'Heroic'” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xd9fab79f649bbe0cbb94611798bf662ea58cab2f047f396790c3ad913ecd55d1 and independently timestamped
in Bitcoin block 960121 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9203779.
Recording identifiers
- ISRC
- GBAYC9203779
- Title
- Polonaise No. 6 in A-Flat Major, Op. 53 'Heroic'
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xd9fab79f649bbe0cbb94611798bf662ea58cab2f047f396790c3ad913ecd55d1
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T15:22:21+00:00
- Bitcoin block
- 960121
- Canonical record hash
sha256:f74435c800d1abcc15ad841dabf1fd89e2aec9b720d8ef0c3dcfc1d2a334bd2e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9203779
- Bitcoin block existence check
- https://blockstream.info/api/block/960121
Full record
Track page: Polonaise No. 6 in A-Flat Major, Op. 53 'Heroic' · Machine-readable JSON-LD