Na Carioca

Recording by Mariana Zwarg.

Recording identifiers

ISRC
BRUPM2000011
CopyrightID (CopyrightChains transaction hash)
0xbff99f1f3349bc5297ddf3643d9ee0c6ce11124d8a49532556fce20aa0c6dc86
Copyright registration time
2026-07-07T21:27:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:59f7e2661b0ef24bb091ee298af65159f508c2479b082775e2cf23d59cc466a9

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.