Please Be Sad

Recording by El Caco.

Recording identifiers

ISRC
NOBAR0302090
CopyrightID (CopyrightChains transaction hash)
0x18e2e9b38e713dfd5f6317120d231553bd24177ee50ba2189260122a1af56fcd
Copyright registration time
2026-07-07T21:15:08+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:e6dbfe3acb320ec980e1c729ec1e57f0c6bd296e064ccebb491924b69465b20f

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.