Die Fledermaus: Overture

Recording by Johann Strauss II.

Recording identifiers

ISRC
HKI199191805
CopyrightID (CopyrightChains transaction hash)
0x1636b040a8f664754d6709ec9fd122679b12048be9a170980aa730dc204420f9
Copyright registration time
2026-07-07T13:02:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:ca6eccab6e24ee8a10163bba97b60281060ae35539a2e9f70771b1e7767ad43b

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.