Ballade for Flute & Piano

Recording by Frank Martin.

Recording identifiers

ISRC
NLY432100149
CopyrightID (CopyrightChains transaction hash)
0xbf00f85f63326cda819bc256a71dfea81a5d3969271e098e805ea483c00808d1
Copyright registration time
2026-07-31T05:21:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T05:48:30Z
Bitcoin block
960352
Canonical record hash
sha256:5fdd2aced477d3e99b3aab1d0faa63784cf5a8827f1fed89cd2924e6aa8587ba

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.