De Madrid al Cielo

Recording by Duo Kie.

Recording identifiers

ISRC
QMFME1569853
CopyrightID (CopyrightChains transaction hash)
0xa9ec4e642036e7aea45ff597209e9febb602a8c465eecce0730d565571e4b437
Copyright registration time
2026-07-29T21:48:38+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T21:57:12Z
Bitcoin block
960153
Canonical record hash
sha256:2c568afaffde70e3d6a488a7c68e1de8cfee3ddadd9613b1c7afbd4eeb5a4773

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.