Last Day

Recording by Two Friends.

Recording identifiers

ISRC
CA5KR2130751
CopyrightID (CopyrightChains transaction hash)
0x48d1c45ccbcbcd462bb75879a201b6b6fb57bc2a7df132e965b7b9c978b74b18
Copyright registration time
2026-06-04T13:33:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T09:18:01Z
Bitcoin block
957020
Canonical record hash
sha256:59d125a2e24c1c98ac62bd99d864fad45c50d13dd59a4d123f8705968e8d2c7f

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.