Por Qué No

Recording by Dirty Projectors.

Recording identifiers

ISRC
GBCEL1900783
CopyrightID (CopyrightChains transaction hash)
0xa97104c32f12813819cc672bc44bda36e19e970c469832b5232a4482cc21e211
Copyright registration time
2026-06-25T23:01:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:65f713d731917fb18887902dc0d2231d08e90e70704130ea8fa8d629920a79be

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.