Magdalena

Recording by Marta Kubišová.

Recording identifiers

ISRC
CZA166900764
CopyrightID (CopyrightChains transaction hash)
0xcf4c4f2014db163df1b066595ffb32876be67014dcf6bc641ecc32fcae9e20c5

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T15:42:38Z
Bitcoin block
960273
Canonical record hash
sha256:a4d834ffe0470211ed0bd622341be10525aaaa3644eb80f6447166d39faf8efd

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.