Last Text

Recording by Jacob Sartorius.

Recording identifiers

ISRC
CA5KR1535486
CopyrightID (CopyrightChains transaction hash)
0xcfde5ba17fd5c4aac9e174b1206c7f7784e1d1b42ffa65bd4eca91f897026229
Copyright registration time
2026-06-07T06:41:45+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T17:25:41Z
Bitcoin block
953536
Canonical record hash
sha256:05c3680fa31d093499d988434fa25b1bb5e82159c2ce0e9a90e60d7edab89458

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.