Jeden Tag

Recording by Arne Kopfermann.

Recording identifiers

ISRC
DEAF40100245
CopyrightID (CopyrightChains transaction hash)
0x7df96b90838787ec42963d065cccd4a016e10bcc35b93b3fb70edf9813532661
Copyright registration time
2026-07-31T15:38:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T15:59:18Z
Bitcoin block
960427
Canonical record hash
sha256:ccc390d4bf8655e78baf859e9e267e5749b4874a5a627aee85948b0724f62db5

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.