ISRC NLG620591632
Verified recording
NLG620591632 is “Op bergen en in dalen - Fantasie” by Willem Hendrik Zwart,
registered on the CopyrightChains blockchain with CopyrightID
0x3b6a152d01a77e7c5d0cee6b4a8c5d4e749e06e4a6d09ed9e77254049b3abf25 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620591632.
Recording identifiers
- ISRC
- NLG620591632
- Title
- Op bergen en in dalen - Fantasie
- Artist
- Willem Hendrik Zwart
- CopyrightID (CopyrightChains transaction hash)
0x3b6a152d01a77e7c5d0cee6b4a8c5d4e749e06e4a6d09ed9e77254049b3abf25
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:54a2dffa6cbf8453951ed78ab395a5dee59b5ca58b8e2cc68dd753ede5b88169- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG620591632
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: Op bergen en in dalen - Fantasie · Machine-readable JSON-LD