Die Fledermaus

Recording by Johann Strauss II.

Recording identifiers

ISRC
USA371571792
CopyrightID (CopyrightChains transaction hash)
0x11e9538403f2ae08809cdcef0529f7ab51fd64b4d257a1a2d61ab04d867758d4
Copyright registration time
2026-07-31T17:35:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T18:48:12Z
Bitcoin block
960448
Canonical record hash
sha256:4b286c213b6a581eda40083a8c377e210e32661bf97631f5ef8a99832541e88f

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.