Entr'acte

Recording by Irwin Kostal.

Recording identifiers

ISRC
USRC10503402
CopyrightID (CopyrightChains transaction hash)
0xea374e747eca7e05080309bf2fe939a31800fb99c624757322c0bf40d95ccf27
Copyright registration time
2026-06-05T17:40:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:0aa614daa5eed6cab1eb057e864951ef4e398182a71b32c77d88a5bb064a8c6a

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.