Ecossaise No. 2 in G, Op. 72 No. 4

Recording by Frédéric Chopin.

Recording identifiers

ISRC
NLA507722831
CopyrightID (CopyrightChains transaction hash)
0x092b073a37015d1adfde05844bb42424278d321312dad472d0e3b68c1a02a916
Copyright registration time
2026-07-07T00:22:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:a9a44588c61b2e4f8c829c533b92167ef70c27aeaabdf7aed5cb46b13d8d2154

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.