Ballade No. 3 in A-Flat Major, Op. 47

Recording by Frédéric Chopin.

Recording identifiers

ISRC
CZA160705250
Release date of the album this recording appears on
2020-10-23
CopyrightID (CopyrightChains transaction hash)
0xec35e7836d6fb762d6eba3fec1ead31c17c405ff7b323c60edbe1aeec1c0b4d5
Copyright registration time
2026-07-31T08:35:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T09:09:19Z
Bitcoin block
960376
Canonical record hash
sha256:4354a477c293f4b8569b24fe2c6cfac34233d0edcff29b3eaa7ece7422a990a9

What this proof establishes

This recording was released in 2020, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.