Piosenka starych kochanków

Recording by Wojciech Młynarski.

Recording identifiers

ISRC
PLB821900141
CopyrightID (CopyrightChains transaction hash)
0x145c855c6f4eab2ac0e95d5f47bfcd19c38b14d39b93452d5f8f37414605d54b
Copyright registration time
2026-07-06T10:49:32+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T18:39:05Z
Bitcoin block
957073
Canonical record hash
sha256:8b26fadc971ee6181e54d80b8307ac0dade6ebdc42c23580466ed6bf80bb3f52

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.