Pith Number

pith:4SV42GY7

pith:2018:4SV42GY75XYYQU3AM3Z7O52LSA

not attested not anchored not stored refs pending

Natural Gas Flow Equations: Uniqueness and an MI-SOCP Solver

Manish K. Singh, Vassilis Kekatos

arxiv:1809.09025 v1 · 2018-09-24 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4SV42GY75XYYQU3AM3Z7O52LSA}

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	2026-05-18T00:05:01.290458Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4abcd1b1fedf188536066f3f7774b90375704f0f68baf9a46776cb358455a3b

Aliases

arxiv: 1809.09025 · arxiv_version: 1809.09025v1 · doi: 10.48550/arxiv.1809.09025 · pith_short_12: 4SV42GY75XYY · pith_short_16: 4SV42GY75XYYQU3A · pith_short_8: 4SV42GY7

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/4SV42GY75XYYQU3AM3Z7O52LSA \
  | 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: e4abcd1b1fedf188536066f3f7774b90375704f0f68baf9a46776cb358455a3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3726ab380f4001d8f470ce5946e35688074264dbc5f800c3bef878fe5cb6113",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-09-24T16:02:45Z",
    "title_canon_sha256": "c8e8ac033a9a940e397003608c2fa067279855904dcfa2a7b8ccb01d1f7915dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.09025",
    "kind": "arxiv",
    "version": 1
  }
}