Klavierstück in E Major

Recording by Anton Webern.

Recording identifiers

ISRC
DEBL61401268
CopyrightID (CopyrightChains transaction hash)
0xacd265473bf8f53739b75e45ae11c1461bd71a5e6eb472c6d92f8e86e0d1ea74
Copyright registration time
2026-07-06T18:46:34+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:6d250ed8c97e7b2310a80ad3306c6f2dacbe852bff7d4aea2d6e8b7fdf16ed49

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.