Concert Waltz, Op. 34 No. 4

Recording by Anton Arensky.

Recording identifiers

ISRC
UKJE71900164
CopyrightID (CopyrightChains transaction hash)
0x03304b97d69ab6e7c8f1172ef868fe97b3247bcbe934a12535eda9ee94fb4d1c
Copyright registration time
2026-07-07T17:13:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:b4c26f6b9fccee394abca5b7d86ecc5d1ce3dca0906df6af70ded2732e3b839b

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.