Du und i

Recording by Polo Hofer.

Recording identifiers

ISRC
CH0809754303
CopyrightID (CopyrightChains transaction hash)
0x32db802c81618a928b960135cf95731e7947e051c6b1135288b88f033fa95425
Copyright registration time
2026-07-07T20:37:14+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:1bfdcdfd137733c57b1ccfbcb20f878bf33d1fda2e243e0c422842dca9dcfd2d

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.