El 27

Recording by Grupo Margen.

Recording identifiers

ISRC
QZDQH2395084
CopyrightID (CopyrightChains transaction hash)
0xd86087e2cd3a771b59b6fdeecace5244c41e571c08482fa77e2ac74e5ebe56a6
Copyright registration time
2026-06-26T09:01:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:33f80cd5dce027388616f0a84b70a07e7c98c801a58145a5dfed5f978c86d43c

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.