Ab und zu

Recording by Schreng Schreng & La La.

Recording identifiers

ISRC
CH6540887680
CopyrightID (CopyrightChains transaction hash)
0x3f79008b94a755dc51b76664692dd7639450e7ad67bd18ceb510f2c0c1f7481f
Copyright registration time
2026-07-31T10:07:34+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T10:20:10Z
Bitcoin block
960389
Canonical record hash
sha256:7cc3cec272596de8765e0b88f500195fb1b5cba6e814329d064dd75acbdecd25

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.