ISRC FRUM72300641
Verified recording
FRUM72300641 is “Introduction and Polonaise, Op. 3: II. Alla polacca. Allegro con spirito” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x650ef72fcc92497e3f70c08632dcd7819622e12bcf6a3c1acb2edb59b21f2591 and independently timestamped
in Bitcoin block 960330 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM72300641.
Recording identifiers
- ISRC
- FRUM72300641
- Title
- Introduction and Polonaise, Op. 3: II. Alla polacca. Allegro con spirito
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x650ef72fcc92497e3f70c08632dcd7819622e12bcf6a3c1acb2edb59b21f2591
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T00:58:21+00:00
- Bitcoin block
- 960330
- Canonical record hash
sha256:64f415b5370eb6d59b5c00ca631c786c6073a9486b8aa76b56cbecdb5075cadf- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRUM72300641
- Bitcoin block existence check
- https://blockstream.info/api/block/960330
Full record
Track page: Introduction and Polonaise, Op. 3: II. Alla polacca. Allegro con spirito · Machine-readable JSON-LD