821 Problemas

Recording by Under Side 821.

Recording identifiers

ISRC
ESA011905857
CopyrightID (CopyrightChains transaction hash)
0x7bfeb104f0fab85df5c03e25876cfa21ffa153ecf3be78d4598d090114207cb0
Copyright registration time
2026-06-06T17:54:27+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:53:06Z
Bitcoin block
953515
Canonical record hash
sha256:8cc1c8a56a90c1a7287946b801a875825e0f1aec9556f83d130b16a6b56ce9b9

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.