Mamá

Recording by Marta Kubišová.

Recording identifiers

ISRC
CZA166900185
CopyrightID (CopyrightChains transaction hash)
0x778fe2b1f1e69a9ff529975915a6bfd22dd41fc5b839a9f02384f53a23c63fab

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T00:58:21Z
Bitcoin block
960330
Canonical record hash
sha256:b0f14f6ba18ebc037b6a56f3a82219b6299fd23f32f869cf0becdc569e4054a3

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.