ISRC GBLWD1305409

Verified recording

GBLWD1305409 is “Harnasie, Op. 55, Tableau 1: III. Marsz zbojnicki (Tenor)” by Karol Szymanowski, registered on the CopyrightChains blockchain with CopyrightID 0xa531dc752a52c6e4b745ebd20b401fe2bb983dbc9e492d7fb45b21429657e298 and independently timestamped in Bitcoin block 960264 on 2026-07-30. Verify the canonical record, hash, and Bitcoin attestation at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD1305409.

Recording identifiers

ISRC
GBLWD1305409
Title
Harnasie, Op. 55, Tableau 1: III. Marsz zbojnicki (Tenor)
Artist
Karol Szymanowski
CopyrightID (CopyrightChains transaction hash)
0xa531dc752a52c6e4b745ebd20b401fe2bb983dbc9e492d7fb45b21429657e298

Dual-chain proof evidence

Bitcoin-attested timestamp
2026-07-30T14:36:16+00:00
Bitcoin block
960264
Canonical record hash
sha256:e56ace909e5fe3d8c6fc302409c0c8241b76f704caca9876c883d23856c7e13b
Verification API (6-check server-side result)
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBLWD1305409
Bitcoin block existence check
https://blockstream.info/api/block/960264

Full record

Track page: Harnasie, Op. 55, Tableau 1: III. Marsz zbojnicki (Tenor) · Machine-readable JSON-LD