ISRC USCHR1345403
Verified recording
USCHR1345403 is “Al Maestro Con Cariño (To Sir With Love)” by María Teresa Chacín,
registered on the CopyrightChains blockchain with CopyrightID
0x94df7ddd360f7fbdf7c90dcb35fe83464d65d72c14800ae506cc86f08f93c530 and independently timestamped
in Bitcoin block 960187 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCHR1345403.
Recording identifiers
- ISRC
- USCHR1345403
- Title
- Al Maestro Con Cariño (To Sir With Love)
- Artist
- María Teresa Chacín
- CopyrightID (CopyrightChains transaction hash)
0x94df7ddd360f7fbdf7c90dcb35fe83464d65d72c14800ae506cc86f08f93c530
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T01:34:28+00:00
- Bitcoin block
- 960187
- Canonical record hash
sha256:0264f1cfa5e6bd534c8eb74f029a8695a429a67c47c5704707578100047961a1- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCHR1345403
- Bitcoin block existence check
- https://blockstream.info/api/block/960187
Full record
Track page: Al Maestro Con Cariño (To Sir With Love) · Machine-readable JSON-LD