When I Lost You

Recording by Tony Bennett.

Recording identifiers

ISRC
USSM10210432
CopyrightID (CopyrightChains transaction hash)
0xf1e38f5b5607c8e04076e76f011817a283fd9d5ad51bd4115ee80ce0fae56c83
Copyright registration time
2026-07-08T00:33:17+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:b1a2eedd8e856978db13d6a1fba2494e9939cff8b023e436200fcafc1b0063ab

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.