Tristeza De Nós Dois

Recording by Luiz Eça.

Recording identifiers

ISRC
BRMCA6400151
CopyrightID (CopyrightChains transaction hash)
0x6e1800f28abf751c22f351c9b4f833b6ec2aee2d440923512cf9c29d90d12997
Copyright registration time
2026-06-07T07:05:48+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:53:06Z
Bitcoin block
953515
Canonical record hash
sha256:ccbdd403e4b0674c754b894ae12d56868b3a2f65c103ba0313f924e121799f88

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.