Entr’acte

Recording by Irwin Kostal.

Recording identifiers

ISRC
USC4R2218688
CopyrightID (CopyrightChains transaction hash)
0x3cd4b0e52f8b8b6a08e47234880b5bff9e1807f61765021c7ca024e46271cf10
Copyright registration time
2026-06-22T03:16:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:d21de41ad30c42183148f0ac580fc96e16d05de842abce527feded824de89927

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.