San Francisco

Recording by Natalia Pławiak.

Recording identifiers

ISRC
PL96P2300017
CopyrightID (CopyrightChains transaction hash)
0x5a4b2bd8891fdf20b3081b8bd095df2c987965d19271d1987d7ba5dbddcabeae
Copyright registration time
2026-06-07T22:44:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:ac8473f87657c2b60732b98f6ae72f238b8a56601a102fed12786dd560807efd

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.