Last Summer

Recording identifiers

ISRC

QM4TW2226897

Release date of the album this recording appears on

2022-04-15

CopyrightID (CopyrightChains transaction hash)

0x5a5fc74a677abb0aa04d00bfdfd0c25de0bde3d7b729831c510bd6735d9af739

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T12:06:10Z

Bitcoin block

960254

Canonical record hash

sha256:74165caf1d918303b6c69e8a9c6cff672daef4fb54c27e748c633e5cf5ceb1f1

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC QM4TW2226897

What this proof establishes

This recording was released in 2022. ProofProfile's artist catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and this recording entered the record through cc-db-prod's ISRC-linked registration. Its provenance rests on the dates stated above rather than on the era of that source corpus.

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.