ISRC FRUM72300828
Verified recording
FRUM72300828 is “4 Mazurkas, Op. 68: No. 2 in A Minor, Lento (Arr. for Cello and Piano by C. Thomas)” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0xcc66e6e7609b5155798836ec1df4424521b3de92734f37930ecae933d87ab8b7 and independently timestamped
in Bitcoin block 956889 on 2026-07-06.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM72300828.
Recording identifiers
- ISRC
- FRUM72300828
- Title
- 4 Mazurkas, Op. 68: No. 2 in A Minor, Lento (Arr. for Cello and Piano by C. Thomas)
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0xcc66e6e7609b5155798836ec1df4424521b3de92734f37930ecae933d87ab8b7
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-06T06:56:49+00:00
- Bitcoin block
- 956889
- Canonical record hash
sha256:39252ff921d5e16495f93e40bbe9b9d54d527eaa89ad9a3817e86eed3f9915f5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM72300828
- Bitcoin block existence check
- https://blockstream.info/api/block/956889
Full record
Track page: 4 Mazurkas, Op. 68: No. 2 in A Minor, Lento (Arr. for Cello and Piano by C. Thomas) · Machine-readable JSON-LD