Stretchin’ in Szczecin

Recording by Sylwester Ostrowski.

Recording identifiers

ISRC
PLC592200177
CopyrightID (CopyrightChains transaction hash)
0xe6ea952c840470cbf2d50e6c60091ca727fc76a978a26740cb97c84ab94a710c
Copyright registration time
2026-07-07T08:29:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:850eae33899c366cb462d8342f4d134616d224c84d444ba4d1d51051b9b5ea6d

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.