Por Que Se Marcho

Recording by Alex Ortuño.

Recording identifiers

ISRC
QZNW72326837
CopyrightID (CopyrightChains transaction hash)
0xe715802f865057b2e87d842803f6f15f2e192bc94ffa3f631d9dd1db21e6989a
Copyright registration time
2026-08-01T02:49:29+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-08-01T03:13:03Z
Bitcoin block
960500
Canonical record hash
sha256:b083fbdc8e068039c787df88f5a268ea2481c9049a7f9aaace099e91f0c8fad7

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.