Toccata

Recording by Ignaz Friedman.

Recording identifiers

ISRC
DELE21612407
CopyrightID (CopyrightChains transaction hash)
0x07b225ec33a8ccb907d1f2763dd476fb00dffdfda2b6e95fca416533ff13fdf6
Copyright registration time
2026-06-26T20:02:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:17ce3cf6910034f583b0c38c3d54030ea7188c0d4fab496702915c2d558daa03

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.