Bad'ner Mad'ln, Walzer, Op. 257

Recording by Karel Komzák, Jr..

Recording identifiers

ISRC
USQX92005069
CopyrightID (CopyrightChains transaction hash)
0xe6d26c299da7388c68675c992f70312b6d4882a7c32e1569b3cbacc9c123052e
Copyright registration time
2026-07-07T03:16:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:dad000499fe242ac46d6d085094b039774f3a9f880a48d49630f3f4d51394e60

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.