Then Again

Recording by Leon Rosen.

Recording identifiers

ISRC
QMH6X2000001
CopyrightID (CopyrightChains transaction hash)
0x15b51f98225ee23abbcd1405153557a98b1d5987f3735a6c216e6aade6372083
Copyright registration time
2026-06-21T16:57:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:d083653fd9966597dd6b86a39af93cf9a58e2978ecae34335104e314d546029a

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.