Our train

Recording by Marcos Valle.

Recording identifiers

ISRC
QM9K31201490
Release date of the album this recording appears on
2020-08-21
CopyrightID (CopyrightChains transaction hash)
0xdf2593de3eae0ab7ba991d92eea938f90e36ccf1edef02fca0bd0a985bb45d69
Copyright registration time
2026-06-26T08:35:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:d6f63e74d803fdcb033df2dda85fc95327648a83cd6c6797d570903a9adf97f7

What this proof establishes

This recording was released in 2020, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.