Old Days

Recording by Chicago.

Recording identifiers

ISRC
USE2A1200258
CopyrightID (CopyrightChains transaction hash)
0x72038f229c2e81fe7cd90518394026c9b211329bcb170767144d1d64d602ada1
Copyright registration time
2026-06-05T06:28:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:e7cd1e3a47d90c252c0062ec14801584cf9bead508657fa23c70d7850e382e75

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.