ISRC NLWK31700004
Verified recording
NLWK31700004 is “Sofia” by Thomas Zwijsen,
registered on the CopyrightChains blockchain with CopyrightID
0x913da805266fb8d3d0aaf20218fee0fbdfc84f54c7f96d63d86e183d740ec325 and independently timestamped
in Bitcoin block 960144 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLWK31700004.
Recording identifiers
- ISRC
- NLWK31700004
- Title
- Sofia
- Artist
- Thomas Zwijsen
- CopyrightID (CopyrightChains transaction hash)
0x913da805266fb8d3d0aaf20218fee0fbdfc84f54c7f96d63d86e183d740ec325
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T21:09:47+00:00
- Bitcoin block
- 960144
- Canonical record hash
sha256:008fb4fd6f3e809b38099566f59f92c6950d455f84abcd1e2715b815cb411729- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLWK31700004
- Bitcoin block existence check
- https://blockstream.info/api/block/960144