Jeden ty i jedna ja

Recording by Sylwia Wisniewska.

Recording identifiers

ISRC
PLA550000072
CopyrightID (CopyrightChains transaction hash)
0x4ebbb9ba74bc3c2b15a5849a8b352fbd47a872d3289cb5ebd8a2f98db2be5fa2
Copyright registration time
2026-07-07T23:27:17+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:206c96e981ee9103a560e82e8c8850a72685b16f55179773f85750eb6b66cd9f

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.