ISRC GBUM72403972
Verified recording
GBUM72403972 is “Mazurka No. 33 in B Major, Op. 56 No. 1 - Excerpt” by Frédéric Chopin,
registered on the CopyrightChains blockchain with CopyrightID
0x97526ba3b6fb0c510d0b20c69ddc32cda8c110fb029b624ea3945d1433edf26d and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM72403972.
Recording identifiers
- ISRC
- GBUM72403972
- Title
- Mazurka No. 33 in B Major, Op. 56 No. 1 - Excerpt
- Artist
- Frédéric Chopin
- CopyrightID (CopyrightChains transaction hash)
0x97526ba3b6fb0c510d0b20c69ddc32cda8c110fb029b624ea3945d1433edf26d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:50092a96911d38c9922a1ebed62750d6a368dfcb35cfa2dc74b8df712ba5292b- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM72403972
- Bitcoin block existence check
- https://blockstream.info/api/block/956302
Full record
Track page: Mazurka No. 33 in B Major, Op. 56 No. 1 - Excerpt · Machine-readable JSON-LD