On the Wisla

Recording by Zbigniew Preisner.

Recording identifiers

ISRC
FR13V1400032
CopyrightID (CopyrightChains transaction hash)
0xc0003ea146d7fd50a292b8ab0af160ea4da05de3fe24b3aefd19afcf777ddce8
Copyright registration time
2026-06-18T03:48:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:0ccebf8ce1cac5df31a2e6bcb91f4e1795c7678ada9c151bcc9cc05fa5ee7b05

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.