E's Flat Ah's Flat Too

Recording by Charles Mingus.

Recording identifiers

ISRC
USAT20001828
CopyrightID (CopyrightChains transaction hash)
0x0e47df8f130a7f930813c60be89b9d0e63c1427b33d4e5d04a484be4b55f8715
Copyright registration time
2026-06-10T10:50:57+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:460d202c9b409255a7f9339e1df8f93c0475b8f2451c5ee262fd60772d7b9113

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.