Klavierstücke, Op. 8: No. 1, Allegretto

Recording by Hanns Eisler.

Recording identifiers

ISRC
DEA142535504
CopyrightID (CopyrightChains transaction hash)
0x8299fdea59fe3200ea0353aad855049b57586a0f93e6a455bc9e3b0f39235101
Copyright registration time
2026-07-08T00:45:17+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:152745646c75e1b56cff76a22cf5fd236b6c5cd0b2109be25b5c1f482c327724

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.