30´s

Recording by Dupla.

Recording identifiers

ISRC
ES64E2459611
CopyrightID (CopyrightChains transaction hash)
0x528857b4596b0e991561587c62171cb4902b278c100d0ac6e2d68e0dcfed5805
Copyright registration time
2026-06-20T12:32:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:cad266896344aa8a9af2a2e88a2d17ff9ff9cadbe3e9d940e15141ef979f4bfb

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.