Pith Number

pith:D6L5HOGM

pith:2014:D6L5HOGMCFZEQMME6O36TD7MOX

not attested not anchored not stored refs pending

Solving the Monge-Amp\`ere Equations for the Inverse Reflector Problem

Andreas Platen, Kolja Brix, Yasemin Hafizogullari

arxiv:1404.7821 v2 · 2014-04-30 · math.NA · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D6L5HOGMCFZEQMME6O36TD7MOX}

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	2026-05-18T02:20:19.947133Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f97d3b8cc1172483184f3b7e98fec75ea96eb5f8192378e6125838324761099

Aliases

arxiv: 1404.7821 · arxiv_version: 1404.7821v2 · doi: 10.48550/arxiv.1404.7821 · pith_short_12: D6L5HOGMCFZE · pith_short_16: D6L5HOGMCFZEQMME · pith_short_8: D6L5HOGM

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/D6L5HOGMCFZEQMME6O36TD7MOX \
  | 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: 1f97d3b8cc1172483184f3b7e98fec75ea96eb5f8192378e6125838324761099

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70c02359f88baaeebaa596ef900b3d29a969810d71813a8d67374953177190b6",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-04-30T18:23:17Z",
    "title_canon_sha256": "d96c3d7dae9ba5561dbaf992180d965a728d1c929f2f21a57a908eac68b78584"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.7821",
    "kind": "arxiv",
    "version": 2
  }
}