Jag har hört om en stad

Recording by Per-Olof Ehrlin.

Recording identifiers

ISRC
SEVPA5003609
CopyrightID (CopyrightChains transaction hash)
0x148a89477646894b9bc13806b8f532e3bd1006f20519e309c5bc982c260ef7de
Copyright registration time
2026-06-23T10:51:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:3a3aae61d4b35771432f08ac82b104ae51f7204000dfb6bfbd54ccb8521f1fbe

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.