Ecossaise No. 3 in D flat, Op. 72 No. 5

Recording by Frédéric Chopin.

Recording identifiers

ISRC
NLA507722832
CopyrightID (CopyrightChains transaction hash)
0xbd950112a238cc6a990db95dfb724e31bf6b2ca54aba3275ab459ef9a8704375
Copyright registration time
2026-07-07T00:18:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:2dd538dfbec70cfb7bb4cf4633cb9f08a1fe47de93ff28700b3eea407c23f7ae

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.