Al Maestro Con Cariño (To Sir With Love)

Recording identifiers

ISRC

USCHR1345403

Release date of the album this recording appears on

2011-01-01

CopyrightID (CopyrightChains transaction hash)

0x94df7ddd360f7fbdf7c90dcb35fe83464d65d72c14800ae506cc86f08f93c530

Copyright registration time

2026-07-30T01:30:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T01:34:28Z

Bitcoin block

960187

Canonical record hash

sha256:0264f1cfa5e6bd534c8eb74f029a8695a429a67c47c5704707578100047961a1

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USCHR1345403

What this proof establishes

This recording was released in 2011, 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.