Eins und eins

Recording by Hildegard Knef.

Recording identifiers

ISRC
DEN120203785
CopyrightID (CopyrightChains transaction hash)
0xa87dc72c95840fb12a90909c71114ce3a7434779b0f1995eb059831d18e0a38b
Copyright registration time
2026-07-06T18:58:45+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:9f1705fc710c9865e29dd0712ddbd67be286740e83948a3b79ac82602588d5da

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.