Cartão Postal

Recording by Olivia Hime.

Recording identifiers

ISRC
BRPUI0400212
CopyrightID (CopyrightChains transaction hash)
0x76ae0927973a4ca6e654d59c7cb4953b332e6f29dba5f21df49390fe3ffad93a
Copyright registration time
2026-07-07T16:05:12+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T08:56:20Z
Bitcoin block
957145
Canonical record hash
sha256:dce267897e173b811a03a5fe467f3d8cf27dc622d43c78f3517d48260507e893

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.