Só Lamento

Recording by João Martins.

Recording identifiers

ISRC
BRC832000009
CopyrightID (CopyrightChains transaction hash)
0x542e6e2a4efd68a9aff01d748af8f3871425f9c7d122bfd9d76aef46109fdac6
Copyright registration time
2026-07-29T16:31:46+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T19:35:34Z
Bitcoin block
960138
Canonical record hash
sha256:67912c75543c9e5005305c8bd51f5fa659d2e2f308fc3770a6946b812f413854

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.