Half Past One

Recording identifiers

ISRC

DEX170522502

Release date of the album this recording appears on

1975-09-01

CopyrightID (CopyrightChains transaction hash)

0x66c800501e6adba5ae07e3ac1683fe4a891ad0b25841e2bddd9685fc63434d79

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T05:23:41Z

Bitcoin block

960349

Canonical record hash

sha256:a344f43a8f5cb8d0018646fe8b7a00b14e7b450c47e4d61d3ee06dece504d30f

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEX170522502

What this proof establishes

This recording was released in 1975, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.