Polish

Recording by Reffer.

Recording identifiers

ISRC
USL4Q1938262
CopyrightID (CopyrightChains transaction hash)
0x465666cac2e8a9ef4a7c802075231ef5f350eac7879adc8f7a70d41b7dffa1d4
Copyright registration time
2026-07-06T19:44:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:1cdf4eda80565fa1c8a1d1ec006b319434b50dc00ed11a848856d23ce0c81e56

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.