Waltz No. 7 in C-Sharp Minor, Op. 64, No. 2: Waltz No. 7 in C-Sharp Minor, Op. 64, No. 2

Recording by Frédéric Chopin.

Recording identifiers

ISRC
GBPCP1000033
Release date of the album this recording appears on
2010-04-05
CopyrightID (CopyrightChains transaction hash)
0x5442abe28ad9b665a5672e1c942b139b1b6310986189c7e20d6065dfec0c31a6
Copyright registration time
2026-07-07T17:33:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:1c0314b43319638a38ac6443c63f2dcde93128acd88704a80ceb1032213474e5

What this proof establishes

This recording was released in 2010, 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.