São Francisco

Recording by Silvio Caldas.

Recording identifiers

ISRC
BRSME9500406
CopyrightID (CopyrightChains transaction hash)
0x35fef4e04c7102e25da6861cb80af7e8c490fa88d18927928911a9a8362551c7
Copyright registration time
2026-07-07T15:58:31+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:e85edd4e5a9cfd123e6e560fe3f14d6318c00a53cf3bc0ba9933c0d477f358f1

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.