La Duda

Recording identifiers

ISRC

MXUM70803424

Release date of the album this recording appears on

2021-10-29

CopyrightID (CopyrightChains transaction hash)

0x30d3a949a8ab7bbd677b0593697425edfcdda630f366213b9eb4b8649231f8e9

Copyright registration time

2026-06-07T16:12:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T18:39:05Z

Bitcoin block

957073

Canonical record hash

sha256:9cfb8fb87f66bb705031aba06fe009bb4daa520ae577cb061882d8b9c0b2ea95

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC MXUM70803424

What this proof establishes

This recording was released in 2021, 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.