Pith Number

pith:NM7KQGG6

pith:2016:NM7KQGG6SDKMOFVS7FKVJFA3GU

not attested not anchored not stored refs pending

Finding long simple paths in a weighted digraph using pseudo-topological orderings

Miguel Raggi

arxiv:1609.07450 v3 · 2016-09-23 · cs.DM · 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{NM7KQGG6SDKMOFVS7FKVJFA3GU}

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	2026-05-18T00:22:52.990954Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b3ea818de90d4c716b2f95554941b35058448595381693a8fb382c9c9886d4b

Aliases

arxiv: 1609.07450 · arxiv_version: 1609.07450v3 · doi: 10.48550/arxiv.1609.07450 · pith_short_12: NM7KQGG6SDKM · pith_short_16: NM7KQGG6SDKMOFVS · pith_short_8: NM7KQGG6

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/NM7KQGG6SDKMOFVS7FKVJFA3GU \
  | 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: 6b3ea818de90d4c716b2f95554941b35058448595381693a8fb382c9c9886d4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f815bb3e99c32ec48a2886d0f6e494a41cb02ad7999d2d262d2c82c954679195",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2016-09-23T18:02:36Z",
    "title_canon_sha256": "acaa55b59489e32a94df7661265e742ab408d72cd58e40d42ecaafa48bfdbb1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.07450",
    "kind": "arxiv",
    "version": 3
  }
}