O Marginal

Recording by Cássia Eller.

Recording identifiers

ISRC
BRUM70600673
CopyrightID (CopyrightChains transaction hash)
0x01d6366cbfb6e5d58b442d3d9894ff3ef88f81c582321d9cc50c8763479825b3
Copyright registration time
2026-07-06T05:51:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T07:53:57Z
Bitcoin block
956894
Canonical record hash
sha256:c911e7178f8e77bbe131a4dac1b870df6699c794c59e452d0ffd206c948eeaa8

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.