ISRC USC4R0300807
Verified recording
USC4R0300807 is “My Funny Valentine” by Jack McDuff,
registered on the CopyrightChains blockchain with CopyrightID
0x13ab064ad54cfb5d6d79b597a2ac3df50cd095350d09fe1fc857e3363ede0d7d and independently timestamped
in Bitcoin block 960427 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R0300807.
Recording identifiers
- ISRC
- USC4R0300807
- Title
- My Funny Valentine
- Artist
- Jack McDuff
- CopyrightID (CopyrightChains transaction hash)
0x13ab064ad54cfb5d6d79b597a2ac3df50cd095350d09fe1fc857e3363ede0d7d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T15:59:18+00:00
- Bitcoin block
- 960427
- Canonical record hash
sha256:be4ff85eac239e7023ab5071515d18370eab7d0fecd8eb215766a8fa5d0b08fb- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USC4R0300807
- Bitcoin block existence check
- https://blockstream.info/api/block/960427