Undine: Act II: Entracte

Recording by Albert Lortzing.

Recording identifiers

ISRC
US2TL0938314
CopyrightID (CopyrightChains transaction hash)
0x9932f1ac45767331136fc37c4d23a3661f2e1b6df85b35ae0dbc8466d15ee94b
Copyright registration time
2026-07-07T02:40:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:370dacc89e63883cd22d732f85653519404a04f2bd31f77c3395df462ef668cb

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.