Pith Number

pith:7QEWCVXA

pith:2019:7QEWCVXAVAJJP6LE6XZPASGL5F

not attested not anchored not stored refs pending

Satellite Constellation Pattern Optimization for Complex Regional Coverage

Hang Woon Lee, Koki Ho, Seiichi Shimizu, Shoji Yoshikawa

arxiv:1910.00672 v4 · 2019-10-01 · math.OC · cs.SY · eess.SY · physics.space-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7QEWCVXAVAJJP6LE6XZPASGL5F}

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	2026-07-05T01:54:41.436449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc096156e0a81297f964f5f2f048cbe944527e3bcb1173d8a5deb707a69bffcb

Aliases

arxiv: 1910.00672 · arxiv_version: 1910.00672v4 · doi: 10.48550/arxiv.1910.00672 · pith_short_12: 7QEWCVXAVAJJ · pith_short_16: 7QEWCVXAVAJJP6LE · pith_short_8: 7QEWCVXA

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/7QEWCVXAVAJJP6LE6XZPASGL5F \
  | 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: fc096156e0a81297f964f5f2f048cbe944527e3bcb1173d8a5deb707a69bffcb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "275e8b7cf60b4146656b30d82e01ba1388e81ff66a6003f4940aa7932c82236d",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY",
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-10-01T21:17:02Z",
    "title_canon_sha256": "d0c05a3442819937b711a087e279db2fca0feaf5e1d9c82be543b91b11ec6676"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.00672",
    "kind": "arxiv",
    "version": 4
  }
}