Cartão Postal

Recording by Exaltasamba.

Recording identifiers

ISRC
BREMI9800711
CopyrightID (CopyrightChains transaction hash)
0xa5ab587d0086ea8defc723f374f718dea18b2d691dd21796323bea1cc820fa6c
Copyright registration time
2026-07-03T02:56:04+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T06:56:49Z
Bitcoin block
956889
Canonical record hash
sha256:156a78cbb11f7a4827c194118df571e61ed75107c5598841f13e7828a6eecfac

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.