Back to the Old Days

Recording by Secondhand Serenade.

Recording identifiers

ISRC
QM8L91400009
CopyrightID (CopyrightChains transaction hash)
0xb6a840d409584acb8f65125c8ad16068943b1c30547278a57127040ae79ed34a
Copyright registration time
2026-06-10T10:55:03+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:83abf9a1482151390b8ee20071e7bd2e0016655e0e1392a4ea9ba3729cf71c81

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.