A Porta

Recording by Dori Caymmi.

Recording identifiers

ISRC
BREMI8000310
CopyrightID (CopyrightChains transaction hash)
0xec47742b8bb37a15caa58034c01d9f203a7cf1e59c6ea4651695f79798a56570
Copyright registration time
2026-06-27T11:26:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:49d18c5fc8f1df797e7cd8d9df1d5a9ea47494d5aa42aaac75790c925b2f05bb

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.