To kammerater

Recording by Otto Brandenburg.

Recording identifiers

ISRC
DKABA1100520
CopyrightID (CopyrightChains transaction hash)
0x2e1d3ba187eb41a5699db27f05903cd2e8841e091c85b356569f7b8f58de0a34
Copyright registration time
2026-06-21T04:21:14+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:a9a17a1159db523763e2040c4acaae9de0dad29ca665199f90cd31dd4258e8cb

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.