En Marcha

Recording by Gustavo Santaolalla.

Recording identifiers

ISRC
FR3X62122010
CopyrightID (CopyrightChains transaction hash)
0xaf858e52ab8d5a0f20a6f7dc18417b242644746fad952768128b40337d54d68e
Copyright registration time
2026-07-06T08:25:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-13T07:53:33Z
Bitcoin block
957819
Canonical record hash
sha256:66a4647287657b8e686fd635a2cb921a776b16e8f0f4c223f0ab83bf0a9574a7

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.