Pith Number

pith:NNRLT2GP

pith:2018:NNRLT2GP2JGA7XJXZY7SZWGX77

not attested not anchored not stored refs pending

A Fixed-Parameter Linear-Time Algorithm for Maximum Flow in Planar Flow Networks

Assaf Kfoury

arxiv:1807.04186 v1 · 2018-07-11 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NNRLT2GP2JGA7XJXZY7SZWGX77}

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	2026-05-18T00:10:57.652356Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b62b9e8cfd24c0fdd37ce3f2cd8d7ffdfb00945467eaec7c5d4d937d3dd3ff2

Aliases

arxiv: 1807.04186 · arxiv_version: 1807.04186v1 · doi: 10.48550/arxiv.1807.04186 · pith_short_12: NNRLT2GP2JGA · pith_short_16: NNRLT2GP2JGA7XJX · pith_short_8: NNRLT2GP

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/NNRLT2GP2JGA7XJXZY7SZWGX77 \
  | 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: 6b62b9e8cfd24c0fdd37ce3f2cd8d7ffdfb00945467eaec7c5d4d937d3dd3ff2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f671f990430a2a1da08c5a229d342fe94669a2d309e563bdd61e6a21bfe42a3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-07-11T15:16:25Z",
    "title_canon_sha256": "9d2c401fb9770d2eeea7b927fe0508b8ca7b2785a63ab4a0dc6f0d6e8e2ee54d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04186",
    "kind": "arxiv",
    "version": 1
  }
}