Improvável

Recording by Zélia Duncan.

Recording identifiers

ISRC
BRWMB9802191
CopyrightID (CopyrightChains transaction hash)
0x6fcf3cca195627893422e97e91c1327d03e62f9a9baa6eed7cd4c516e57511d2
Copyright registration time
2026-06-18T03:26:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:f9a3c2177440f648e73c31297f598c022c60bdbcee2bb8107e45ce1d8561c06c

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.