Berta

Recording by Ludwig Hirsch.

Recording identifiers

ISRC
ATUM70600101
CopyrightID (CopyrightChains transaction hash)
0x405d5e124dbe52f7d6257f4f9182fed5a192218df72276d6f826fda5f6ee1c87
Copyright registration time
2026-07-30T01:58:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T02:21:55Z
Bitcoin block
960198
Canonical record hash
sha256:1363735d5ae8853b6a71fa98e2869e2f77714e224ccd1b0b44f447d9ce8ad253

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.