קשה לעבוד

Recording by Matti Caspi.

Recording identifiers

ISRC
IL1010101316
CopyrightID (CopyrightChains transaction hash)
0x603c5010894c1ab41f0063eecd31d86f40013794251b9e211a32751263d29ceb
Copyright registration time
2026-06-20T07:37:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:b02d266eadb9a202ef3164a9e2970d0ce5c290d5828a0223e4493244ab3bf020

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.