Requiem por una Magdalena

Recording by Marta Quintero.

Recording identifiers

ISRC
ES5160700804
CopyrightID (CopyrightChains transaction hash)
0x6a74a51f50c49632df8bf45a930c0d27319623c1b5c561e21769298c2e25c741
Copyright registration time
2026-06-07T09:22:00+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:53:06Z
Bitcoin block
953515
Canonical record hash
sha256:3a3e045524f3b02899a49d702a1257fa17d7b35e9e18635a160b6c4cd097ea96

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.