Pith Number

pith:7FRE5ILA

pith:2015:7FRE5ILA6QFKOHBCLK5ERWRZQB

not attested not anchored not stored refs pending

A Parametric Simplex Algorithm for Linear Vector Optimization Problems

Birgit Rudloff, Firdevs Ulus, Robert Vanderbei

arxiv:1507.01895 v3 · 2015-07-07 · 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{7FRE5ILA6QFKOHBCLK5ERWRZQB}

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	2026-05-17T23:45:10.356453Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9624ea160f40aa71c225aba48da398041b8df2d724001bb92c8e7da73b6a801

Aliases

arxiv: 1507.01895 · arxiv_version: 1507.01895v3 · doi: 10.48550/arxiv.1507.01895 · pith_short_12: 7FRE5ILA6QFK · pith_short_16: 7FRE5ILA6QFKOHBC · pith_short_8: 7FRE5ILA

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/7FRE5ILA6QFKOHBCLK5ERWRZQB \
  | 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: f9624ea160f40aa71c225aba48da398041b8df2d724001bb92c8e7da73b6a801

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c3fd052795b5422bff5f7d076cd06c89ceaf6fee40fc92931e3d6f3719df641",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-07-07T17:51:49Z",
    "title_canon_sha256": "5bb98f800db3878195afa32228e0bacb5fe51114e34884d25b5f789d56499916"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.01895",
    "kind": "arxiv",
    "version": 3
  }
}