ISRC FRUM72300826
Verified recording
FRUM72300826 is “17 Polish Songs, Op. posth. 74: No. 2, "Spring" (Wiosna), B.116 (Arr. for Cello and Piano by C. Thomas)” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x518a2803b2fd24e62cd6a259c832de27ae74cf3ab3948586297bd0ed248e8834 and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM72300826.
Recording identifiers
- ISRC
- FRUM72300826
- Title
- 17 Polish Songs, Op. posth. 74: No. 2, "Spring" (Wiosna), B.116 (Arr. for Cello and Piano by C. Thomas)
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x518a2803b2fd24e62cd6a259c832de27ae74cf3ab3948586297bd0ed248e8834
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:fce4c586cd664793e6252410a60dbfea01e033c54509e235f39f5a1890d303ea- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM72300826
- Bitcoin block existence check
- https://blockstream.info/api/block/956304
Full record
Track page: 17 Polish Songs, Op. posth. 74: No. 2, "Spring" (Wiosna), B.116 (Arr. for Cello and Piano by C. Thomas) · Machine-readable JSON-LD