Histoire du Tango: IV. Concerto d'Aujourd'hui

Recording by Astor Piazzolla.

Recording identifiers

ISRC
SEWDL0567304
CopyrightID (CopyrightChains transaction hash)
0x4e7ac56449f3270534c6843fe444cd9d3ccc9b334851206d1c97c1cf3a366b4c
Copyright registration time
2026-07-07T18:22:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:9f83a467c7424cada333600487667e87d159eeb81195ae1abe4656ed1599ac39

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.