I ha mir Sorge gmacht

Recording by Polo Hofer.

Recording identifiers

ISRC
CH0800712109
CopyrightID (CopyrightChains transaction hash)
0x5c3aad42af9063128268e4591260909065f766a0b9f913bbb94b87b49ea015d2
Copyright registration time
2026-07-06T10:22:58+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T18:39:05Z
Bitcoin block
957073
Canonical record hash
sha256:961539e03c232c571179f8276377da01e80c2fa9c2e314b37b5b53c8550251ef

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.