Má, Dva Roky Má

Recording by Petr Spálený.

Recording identifiers

ISRC
CZA167300378
CopyrightID (CopyrightChains transaction hash)
0x3f0f82b70bc7937482f1c98951e50f75d976c7207575d41a7da31e3196981d1c
Copyright registration time
2026-07-30T10:16:03+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T10:42:33Z
Bitcoin block
960247
Canonical record hash
sha256:b1f3098fb1c77caac739c752146f43355cceeaabf1cf50619f8e5de48fc50686

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.