Pith Number

pith:SJ3QI4QO

pith:2012:SJ3QI4QOI47M27KCYTYKUCGRJV

not attested not anchored not stored refs pending

An efficient parallel algorithm for the longest path problem in meshes

Alireza Bagheri, Fatemeh Keshavarz-Kohjerdi

arxiv:1201.4459 v1 · 2012-01-21 · 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{SJ3QI4QOI47M27KCYTYKUCGRJV}

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	2026-05-18T04:04:05.996493Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

927704720e473ecd7d42c4f0aa08d14d54bd9d38c95fd699ed97b33f325c3c30

Aliases

arxiv: 1201.4459 · arxiv_version: 1201.4459v1 · doi: 10.48550/arxiv.1201.4459 · pith_short_12: SJ3QI4QOI47M · pith_short_16: SJ3QI4QOI47M27KC · pith_short_8: SJ3QI4QO

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/SJ3QI4QOI47M27KCYTYKUCGRJV \
  | 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: 927704720e473ecd7d42c4f0aa08d14d54bd9d38c95fd699ed97b33f325c3c30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c80200050313b038a6a1eb15ce3051a8ec2c6aacab94e07de8755e4ef5276577",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2012-01-21T10:39:34Z",
    "title_canon_sha256": "21d3ddf0b67dc28a2a4a69a7eddf9609c2a053d84afea3d07bd90b605042a642"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4459",
    "kind": "arxiv",
    "version": 1
  }
}