Pith Number

pith:5KFK5A75

pith:2018:5KFK5A75SIQUTCLWP2MQXHRC74

not attested not anchored not stored refs pending

A Fixed-Parameter Linear-Time Algorithm to Compute Principal Typings of Planar Flow Networks

Assaf Kfoury

arxiv:1807.07067 v1 · 2018-07-18 · 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{5KFK5A75SIQUTCLWP2MQXHRC74}

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	2026-05-18T00:10:21.372830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea8aae83fd92214989767e990b9e22ff04ed0536939e8e22ec5fd1fcd361cf2e

Aliases

arxiv: 1807.07067 · arxiv_version: 1807.07067v1 · doi: 10.48550/arxiv.1807.07067 · pith_short_12: 5KFK5A75SIQU · pith_short_16: 5KFK5A75SIQUTCLW · pith_short_8: 5KFK5A75

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/5KFK5A75SIQUTCLWP2MQXHRC74 \
  | 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: ea8aae83fd92214989767e990b9e22ff04ed0536939e8e22ec5fd1fcd361cf2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d9e0dd875180b06ebb64e31de066d667314a10d01ef9c1afa9637dd2af02e84",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-07-18T16:12:41Z",
    "title_canon_sha256": "0b34b06e092502d1170c05b66caa39a73c8e0d3ebfd0297c78a16e5655bdec1c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.07067",
    "kind": "arxiv",
    "version": 1
  }
}