Back in the Day

Recording by Michael X. Martin.

Recording identifiers

ISRC
USSK31532196
CopyrightID (CopyrightChains transaction hash)
0x3941018a4e6982d4ded03a9d605c0545a52a76bc49827f3386eafd02f5c15b4d
Copyright registration time
2026-07-07T04:43:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:3e1b2e1cf09110e7ca07abf5db2a021dea5d64095c8a1e87f95bad3e09363445

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.