11:11

Recording by Carlos Bica.

Recording identifiers

ISRC
PTNF12400164
CopyrightID (CopyrightChains transaction hash)
0xf6f55bbf6245febc6bce1efad25348187099a66ace7f51489be04d9eb21e016e
Copyright registration time
2026-07-30T12:38:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T12:51:24Z
Bitcoin block
960259
Canonical record hash
sha256:7298375c259fdc9ac8a6bde22c0145b38fbf0647a925e4026b3645306546658d

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.