Pith Number

pith:3EWBKBAT

pith:2026:3EWBKBATK2I5DGCCXMG6VFBNE4

not attested not anchored not stored refs pending

Neural-network methods for two-dimensional finite-source reflector design

Koondanibha Mitra, Lisa Kusch, Martijn Anthonissen, Roel Hacking, Wilbert IJzerman

arxiv:2604.02184 v2 · 2026-04-02 · cs.LG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3EWBKBATK2I5DGCCXMG6VFBNE4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-20T00:05:44.246804Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d92c1504135691d19842bb0dea942d2711e71cb93bb91ca873aa654460fa3855

Aliases

arxiv: 2604.02184 · arxiv_version: 2604.02184v2 · doi: 10.48550/arxiv.2604.02184 · pith_short_12: 3EWBKBATK2I5 · pith_short_16: 3EWBKBATK2I5DGCC · pith_short_8: 3EWBKBAT

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/3EWBKBATK2I5DGCCXMG6VFBNE4 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: d92c1504135691d19842bb0dea942d2711e71cb93bb91ca873aa654460fa3855

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bba03ff6af00358c341a122bac3c1630b719092f317580a7000b1fcfb45c8b18",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-04-02T15:45:50Z",
    "title_canon_sha256": "e8023dd5855514b6237b9ef031f3f454a70e2d6d7c5f1d972d30b5209c2c1085"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.02184",
    "kind": "arxiv",
    "version": 2
  }
}