Cartão Postal

Recording by Olivia Hime.

Recording identifiers

ISRC
BRRGE8200034
CopyrightID (CopyrightChains transaction hash)
0x2083be034f6f1a0955f3ddb3a86a5d4d69de90bc85b9374a2c302e53ef9cc914
Copyright registration time
2026-07-31T12:59:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T13:06:57Z
Bitcoin block
960404
Canonical record hash
sha256:4d12460fa4a434667b0663c5f676636d8b5a7237e330076fe54992f6f175d9d8

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.