Joan

Recording by Gonzalo Rubalcaba.

Recording identifiers

ISRC
USBN29900304
CopyrightID (CopyrightChains transaction hash)
0xa068168ac91dc2b1596b98b3c8d2a04e978c59fb68bf7fd993f5e6c4a57b0aac
Copyright registration time
2026-07-07T00:15:04+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:6e528172580563cc23132798cc97462696a5c9ab03df01630371f9ed1af9db97

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.