Back In The Day

Recording by Mark Ski.

Recording identifiers

ISRC
US92U1912613
CopyrightID (CopyrightChains transaction hash)
0x6e83dc893801887d9924c05c749a272a7486e709492837a01469f575c2278d6d
Copyright registration time
2026-06-23T12:10:16+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T06:56:49Z
Bitcoin block
956889
Canonical record hash
sha256:297da06e7456a8a8ce9a1e5949e04e90b25eb6b6569f6e5b5e815a6e7cc0be05

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.