Penumbra

Recording by Springtime.

Recording identifiers

ISRC
USJZA2240903
CopyrightID (CopyrightChains transaction hash)
0x51cf2247dd1fc035f081d06a1bc756e260420bcf0e44a2c771aac931f25a8c42
Copyright registration time
2026-07-07T05:56:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:ee0a3e1783cf5a6ede6d0e61de25bd7a6e5868b0348de7f726ef62f411bb45df

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.