Pith Number

pith:IHPBQUIM

pith:2018:IHPBQUIMJUGTXHGJWVVVTAYALO

not attested not anchored not stored refs pending

Counting Shortest Two Disjoint Paths in Cubic Planar Graphs with an NC Algorithm

Andreas Bj\"orklund, Thore Husfeldt

arxiv:1806.07586 v1 · 2018-06-20 · 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{IHPBQUIMJUGTXHGJWVVVTAYALO}

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	2026-05-18T00:12:47.276989Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41de18510c4d0d3b9cc9b56b5983005b9859323f9c108e6b8dd8aa497b2ece00

Aliases

arxiv: 1806.07586 · arxiv_version: 1806.07586v1 · doi: 10.48550/arxiv.1806.07586 · pith_short_12: IHPBQUIMJUGT · pith_short_16: IHPBQUIMJUGTXHGJ · pith_short_8: IHPBQUIM

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/IHPBQUIMJUGTXHGJWVVVTAYALO \
  | 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: 41de18510c4d0d3b9cc9b56b5983005b9859323f9c108e6b8dd8aa497b2ece00

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94154fbd39d208922f59b5aa19b5694625d642cda0e42e84d0d4e67747293cf0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-06-20T07:26:37Z",
    "title_canon_sha256": "bae3b9dbe1fde5b558f8959ab53842653963487a1fde1d06da0f0da98ab8c0b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.07586",
    "kind": "arxiv",
    "version": 1
  }
}