Hot-Sonate for Alto Saxophone and Piano: Hot Sonate 4

Recording by Erwin Schulhoff.

Recording identifiers

ISRC
NLA860050004
Release date of the album this recording appears on
2005-04-22
CopyrightID (CopyrightChains transaction hash)
0x42448bd29b5d3359a40e7b7946c03064ea3374b77d0b2093271bbb9d3e507b4b
Copyright registration time
2026-07-07T15:24:46+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:494a52d942f0255dc8bcb7320ad5a555b1d6695ec26ec1a075313768df6bcbec

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.