Ostra

Recording by Marcela Mangabeira.

Recording identifiers

ISRC
BXZ362400001
CopyrightID (CopyrightChains transaction hash)
0x10b6e11b90d6333354a3be278bed6e49d51d0c8624bbd01d09a691ac882bce33
Copyright registration time
2026-06-25T11:58:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-16T13:53:37Z
Bitcoin block
956351
Canonical record hash
sha256:233304293467cc4593743236f6e569b9b542d9a06c4efc1a2b6da2fadd125042

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.