Collage

Recording by Fritz Kalkbrenner.

Recording identifiers

ISRC
DEAF70932129
CopyrightID (CopyrightChains transaction hash)
0x52f3ce7e50c4c029a4d96a7f661e1473db69eb3d6584546855e6a666bfbdfcd4
Copyright registration time
2026-06-19T22:21:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:850de27ae9786927735b922898825bfb41a4b5ed673d04430baa5fa3de02acd8

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.