Barcelona

Recording by Frank Wilczek.

Recording identifiers

ISRC
DEL111200537
CopyrightID (CopyrightChains transaction hash)
0xce4949848733bb9d730c7270a23b6cf7e7eb6672518456ba235509dc1b1fa812
Copyright registration time
2026-07-07T16:53:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:d2ec59c2d0b99569078392f77de19523b14c3ef35729f7bcb923331151a9a452

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.