Jen jednou smím se ti lásko vzdát

Recording identifiers

ISRC

CZA239700169

Release date of the album this recording appears on

2018-10-26

CopyrightID (CopyrightChains transaction hash)

0x3e5b12bc0bfefdd121d7d93822a5665db1e82a6ab02c109a31a7c48ac8e8c84e

Copyright registration time

2026-06-23T03:40:28+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-06T06:56:49Z

Bitcoin block

956889

Canonical record hash

sha256:b3e6a35f967018286fba2972c4452a26e7ee9bab72b6f819a3e33c61ddea80dd

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC CZA239700169

What this proof establishes

This recording was released in 2018, 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.