Sommaren i City

Recording by Markus Landgren.

Recording identifiers

ISRC
SEPQM0611768
CopyrightID (CopyrightChains transaction hash)
0xc595e141717a43bac1d6aa96b79e1de9bf21a8b66de7ed89c0a2af9c3aca498d
Copyright registration time
2026-06-18T15:23:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:7269458805148082a9cafd94238a22077097f6a1e1be60612de9fe35815d8990

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.