1X0 (Um a Zero)

Recording by Pixinguinha.

Recording identifiers

ISRC
BRBMG4600034
CopyrightID (CopyrightChains transaction hash)
0x0dd833a09c616e3c781155008611ac4ee51332cfd56254f628ded3b4f612e22f
Copyright registration time
2026-07-06T23:17:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:1e4b9e7347f4b6632be564b3714da6b71723f3ae5c543dcd54a14f9fe7e6d599

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.