ISRC NLK4J2200019
Verified recording
NLK4J2200019 is “Quatre Mains: Contrasts” by Hans Henkemans,
registered on the CopyrightChains blockchain with CopyrightID
0x2e13a8353a5684783922eba441f106ba3e310662853e3567714df62e3f2f03ff and independently timestamped
in Bitcoin block 960220 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK4J2200019.
Recording identifiers
- ISRC
- NLK4J2200019
- Title
- Quatre Mains: Contrasts
- Artist
- Hans Henkemans
- CopyrightID (CopyrightChains transaction hash)
0x2e13a8353a5684783922eba441f106ba3e310662853e3567714df62e3f2f03ff
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T07:28:30+00:00
- Bitcoin block
- 960220
- Canonical record hash
sha256:999c4d60a33b8b8015538dd03871477f6b1ef78d84c03fce3ddb8cb972bb8e86- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLK4J2200019
- Bitcoin block existence check
- https://blockstream.info/api/block/960220
Full record
Track page: Quatre Mains: Contrasts · Machine-readable JSON-LD