Madrid

Recording by Plácido Domingo.

Recording identifiers

ISRC
USSM19600988
CopyrightID (CopyrightChains transaction hash)
0x246416b6ba3d661ca3af9795ad5dddd1298723828b04f5d225af228604ffb75e
Copyright registration time
2026-06-26T22:38:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:e6ebdf891c38332dcf435a38a9cdc181e22298bffcb884e230e325c3cda19e6f

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.