Šedesátý Léta

Recording by Petr Spálený.

Recording identifiers

ISRC
CZA160401347
CopyrightID (CopyrightChains transaction hash)
0x664d81c8c0391e977d608f078276bda00191d9c28673f56657c00c794841d328
Copyright registration time
2026-06-10T23:03:57+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:5dda1ba9b354690425b0f8798dda98a9f9d769de5497a853402fa3cab3053356

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.