21 gram

Recording by MCN.

Recording identifiers

ISRC
RSA222010048
CopyrightID (CopyrightChains transaction hash)
0x5b76cf7d86c7227d11dcf4af45038b8dff39f29290f44d14feb2ce78da975640
Copyright registration time
2026-06-21T11:43:41+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:f06b86ffcae3bfb6486541d854e62fbe410c8e41ff5771bb673a6cc2041104c7

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.