Una Oportunidad - Remastered 2020

Recording identifiers

ISRC

USUM72022971

CopyrightID (CopyrightChains transaction hash)

0xe349e23799930be36d17d29101b4e7aa93f2353337a2348ed5d070f687209b02

Copyright registration time

2026-07-07T00:00:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:fd4e4edb6b7fee755d318d613dec94ecfc4116f1e3f1dd4d2d0ebefa6f632a2d

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.