El E - B (Bonus Track)

Recording by Grupo Marca Registrada.

Recording identifiers

ISRC
USDXS2013420
Release date of the album this recording appears on
2020-10-23
CopyrightID (CopyrightChains transaction hash)
0xab0b366ecf2eefc372a5b7e848d8611ec6a9b1430422f6bcd7eef8f00b27e9c0
Copyright registration time
2026-06-09T23:00:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:87d078956912460a94be5f3f01ed64c6272ed4ccc9a8ebe055d4a20f8290314e

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.