San Francisco

Recording by Christina Hellström.

Recording identifiers

ISRC
SEXCH0150101
CopyrightID (CopyrightChains transaction hash)
0x18aff8b979176c3f13dd7bf44d390222ffd72689a6528a695624ba738c4242d7
Copyright registration time
2026-06-07T23:10:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:77f80d461d4983eef6c2bd2ca6ecf40d284900e511e3e6c362ab1d70ea3cff31

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.