Martillo

Recording by Duo Kie.

Recording identifiers

ISRC
ES6081340901
CopyrightID (CopyrightChains transaction hash)
0xdb21f6afc544f28447d09ca8df830af72520895438b5bd554983d731aaa72ee6
Copyright registration time
2026-06-22T19:53:28+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:9d3d7161182c0eb5dc0d345d0ae2bb3dd282b248af20b71671421a95c4d30eb0

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.