Piano Concerto: IV. Allegro risoluto, molto ritmico

Recording by György Ligeti.

Recording identifiers

ISRC
FR4KC2402015
CopyrightID (CopyrightChains transaction hash)
0x24837f45686567d3a6347a2b9b826d2a3564a3005bfad58652d57f77505547cf
Copyright registration time
2026-07-07T06:18:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:324f9f1f6695cc56be09290c470c05a43e6e0cd6bb7f9523573af1702e05bfa0

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.