The Bartered Bride: ACT II, Scene 4. Kecal Jak pravím, hezká je

Recording identifiers

ISRC

FRZ141110010

Release date of the album this recording appears on

2012-09-11

CopyrightID (CopyrightChains transaction hash)

0x665c41bb714783996e3a15f63dd27643743fd75320366999d16807f3763d7103

Copyright registration time

2026-07-07T06:40:29+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:dcae4c45d8760265f880259c15152f6ec5a48ee72f211ef128a2777e0421cc1a

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC FRZ141110010

What this proof establishes

This recording was released in 2012, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.