Walking through Berlin

Recording by Daniel Oppel.

Recording identifiers

ISRC
ITS782000032
CopyrightID (CopyrightChains transaction hash)
0x9bf48825852b922a9c4547f3d829317b015b08d6e2baed1c2106a934c9ff657b
Copyright registration time
2026-06-27T21:14:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:4473ccd7e40db39a6407709b6f1c2b20cd0d8d8750307a5b460fd7d5651f014b

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.