João E Maria

Recording by Sivuca.

Recording identifiers

ISRC
BRSME0000336
CopyrightID (CopyrightChains transaction hash)
0xd953b12e187e158fc97f8cabffea35344164070f697c069b41db7dc390e1d348
Copyright registration time
2026-06-20T04:01:12+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:06a086b3123422665dbebe1acb753be32869192e53ad7a77ddaeb285d5f45763

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.