Monologue No. 4 for Saxophone: I. Andante espressivo

Recording by Erland von Koch.

Recording identifiers

ISRC
QMBZ91713291
Release date of the album this recording appears on
2005-01-01
CopyrightID (CopyrightChains transaction hash)
0xa9682e9a6260f192953e31fa6bf70a982b30ec83e51a2734c5b8253a4a06f22c
Copyright registration time
2026-01-28T20:39:33+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:e5dec69bf0ddfe3900c786ca9d25ef6e4b5534ebf8ae2c41b8e55a6fa5798ef5

What this proof establishes

This recording was released in 2005, 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.