Zvon

Recording by Hana Ulrychova.

Recording identifiers

ISRC
CZA120004023
CopyrightID (CopyrightChains transaction hash)
0x894bb286fc7131b26a2e7f57981c189bb6f83ebf1b50c1d2bdaa59ed42aeff70

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T23:39:29Z
Bitcoin block
960166
Canonical record hash
sha256:261a0598ad797e0550d9b7952e719d37753808a4bd2e35cff0f48c1315b7e653

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.