ISRC FRZ130839091
Verified recording
FRZ130839091 is “Variations On a Slovak Folksong: Variation 1, Moderato” by Bohuslav Martinů,
registered on the CopyrightChains blockchain with CopyrightID
0x8718ee37f5751552e82e8d75231f94374b115f564d74c096c9738440686f5118 and independently timestamped
in Bitcoin block 960455 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ130839091.
Recording identifiers
- ISRC
- FRZ130839091
- Title
- Variations On a Slovak Folksong: Variation 1, Moderato
- Artist
- Bohuslav Martinů
- CopyrightID (CopyrightChains transaction hash)
0x8718ee37f5751552e82e8d75231f94374b115f564d74c096c9738440686f5118
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T19:53:13+00:00
- Bitcoin block
- 960455
- Canonical record hash
sha256:5d1fbf6b7695e1aa81416b503d768e77492829881ce3fa4aca20cda7f540bb60- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ130839091
- Bitcoin block existence check
- https://blockstream.info/api/block/960455
Full record
Track page: Variations On a Slovak Folksong: Variation 1, Moderato · Machine-readable JSON-LD