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Recording by Astor Piazzolla.

Recording identifiers

ISRC
QMDA71398401
CopyrightID (CopyrightChains transaction hash)
0x9c0cb87daaf51c30f15f79903b2e21c4f20a4390492f4b2549e9b7927a533e8a
Copyright registration time
2026-06-20T07:20:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:d662afe8782da75c440921113d3bccea7181d42762a535b568428426bcb077a0

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.