Vieja milonga

Recording by Orquesta Roberto Firpo.

Recording identifiers

ISRC
CA5KR1552459
CopyrightID (CopyrightChains transaction hash)
0xec2b168dbe5f5b83c8cd87d3fd9f26650062795b49c9a393f105af44ddc1e4b1
Copyright registration time
2026-06-18T21:30:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:cf1b4d7222ce07dcaaa20f025efed6261e012ab86e6c112f3df1502e278a1736

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.