5 Pieces for Orchestra, Op. 10: I. Sehr ruhig und zart

Recording by Anton Webern.

Recording identifiers

ISRC
USSM10212027
Release date of the album this recording appears on
1978
CopyrightID (CopyrightChains transaction hash)
0xa6c3cdfa272bea04ea577b838dbaddb3ff63086782078b96154eaddea0e3b1ab
Copyright registration time
2026-07-07T05:06:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:ea8eb01d4521c8ed2e9c55267a91e072388baf943c91410e55945434bb5e681f

What this proof establishes

This recording was released in 1978, 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.