Contramão

Recording by Bloco do Caos.

Recording identifiers

ISRC
BXSSW2400162
CopyrightID (CopyrightChains transaction hash)
0x7e28fc9809e2497891f2f57a796c4c6b5cc632c34001bb1c0873416028cf39f1
Copyright registration time
2026-07-31T16:52:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T17:29:52Z
Bitcoin block
960441
Canonical record hash
sha256:4126ce54dece5b35b10330d425a733fdadd339ec625e67c5ba528cd27e8ab23d

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.