The Laendler

Recording by Irwin Kostal.

Recording identifiers

ISRC
USC4R2218683
CopyrightID (CopyrightChains transaction hash)
0x7d5b6f7de8859cb968a24204df3fba00c3dc542018055327c6e19b35a4741e1d
Copyright registration time
2026-06-09T18:46:14+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:c90420127d1185e8cf4f9ba9d2b9f357b3b1c8138c1720c532e1a5dd8120febe

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.