Now & Then

Recording by Ivan Sandhas.

Recording identifiers

ISRC
SE4MF2300561
CopyrightID (CopyrightChains transaction hash)
0xcf521f42d3b2b067103190f42bb0cc70234ef73448d3678db7317788a87297bb
Copyright registration time
2026-07-05T01:42:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:e163fdad6a81216cbfe8b1bf6cae2d508926cc6d83df9e573113d50d2c931810

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.