When

Recording by The Lettermen.

Recording identifiers

ISRC
USRE10500978
Release date of the album this recording appears on
1965
CopyrightID (CopyrightChains transaction hash)
0x7803964d38a6ee25df3e06f0ec15436a800e752aec96b995cebeab14e2c9eefc
Copyright registration time
2026-07-30T16:26:29+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T17:23:26Z
Bitcoin block
960284
Canonical record hash
sha256:e0398172299fe41e3ab8ca1250ba9633d442121b140834c6fe176f0d12b8088c

What this proof establishes

This recording was released in 1965, 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.