Von Freund zu Freund

Recording by Viera Blech.

Recording identifiers

ISRC
ATT251314430
CopyrightID (CopyrightChains transaction hash)
0xd4c37fca4996d2d2dc127eed40e0958048759ddfd674cafc5e9b88ffd245464d
Copyright registration time
2026-06-04T16:08:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:382882a8a12fbe006b153b879050e16276149f1e62d01a261460313c9441a3bf

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.