La Vieja Serenata

Recording by Cacho Castaña.

Recording identifiers

ISRC
ARUM71300151
CopyrightID (CopyrightChains transaction hash)
0x85c73527ef04932624baeda8166730e4f4cc38b88b24b13f3fe73df963286791
Copyright registration time
2026-07-07T02:43:03+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:42102d3983196853ab2c125b43ce135f020eed879d018fc0bb7ad9f0505e82e4

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.