Grande valse brillante

Recording by Zygmunt Konieczny.

Recording identifiers

ISRC
PLZ042500022
CopyrightID (CopyrightChains transaction hash)
0x7e5b68f36207c825e87e53b5360f0f00358628974f1a1e6fde5d4f94719df1b0
Copyright registration time
2026-07-29T19:26:08+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T19:35:34Z
Bitcoin block
960138
Canonical record hash
sha256:3d875479105ac80f67243f3b7e2cca9e2691da65216613824f757a2375b04130

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.