Pith Number

pith:ULG3OU3D

pith:2017:ULG3OU3DJLTUXI7DI5HOH6NNSI

not attested not anchored not stored refs pending

A Note on Approximating Weighted Independence on Intersection Graphs of Paths on a Grid

Saeed Mehrabi

arxiv:1708.09314 v2 · 2017-08-30 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ULG3OU3DJLTUXI7DI5HOH6NNSI}

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	2026-05-18T00:06:20.831752Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2cdb753634ae74ba3e3474ee3f9ad921aea7f3802455b70e45acf8e86c9ebc4

Aliases

arxiv: 1708.09314 · arxiv_version: 1708.09314v2 · doi: 10.48550/arxiv.1708.09314 · pith_short_12: ULG3OU3DJLTU · pith_short_16: ULG3OU3DJLTUXI7D · pith_short_8: ULG3OU3D

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/ULG3OU3DJLTUXI7DI5HOH6NNSI \
  | 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: a2cdb753634ae74ba3e3474ee3f9ad921aea7f3802455b70e45acf8e86c9ebc4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1a73d3c11057ba0defc06a2230e38b9b1187dde72434760f80ec987210ca56f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2017-08-30T15:06:28Z",
    "title_canon_sha256": "40f4ebca8b137c0bc5384511237f21a3336f2e3a260631bf169e7f4672f3c168"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.09314",
    "kind": "arxiv",
    "version": 2
  }
}