Estado de Poesia

Recording by Chico César.

Recording identifiers

ISRC
BRCOH1500003
CopyrightID (CopyrightChains transaction hash)
0x6b4105b66a658f2f0de3081a97600ddbd6e37d98a0e3a7e0ea4bf53cb626ab15
Copyright registration time
2026-06-04T12:21:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:19f06f4e59aa2a9038d030970df0e612bd344d9417ad1d4a9fcc919e26d6c96e

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.