Sifting

Recording by Nirvana.

Recording identifiers

ISRC
USSUB0983411
CopyrightID (CopyrightChains transaction hash)
0xeac4a3bfc7aa806cd4013642ebe75cf835363399e69557439702adc8cc0707d0
Copyright registration time
2026-06-04T09:16:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:53:06Z
Bitcoin block
953515
Canonical record hash
sha256:4435023ef42d3defad438d259a69f19e699cbf85fdff49079be368fd19ed274c

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.