Pith Number

pith:BCPOUIQ5

pith:2017:BCPOUIQ5FBIOLCOOV6ANUIURXQ

not attested not anchored not stored refs pending

Finding Two Disjoint Simple Paths on Two Sets of Points is NP-Complete

Abdolah Sepahvand, Mohammadreza Razzazi

arxiv:1712.09619 v1 · 2017-12-27 · cs.CC · 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{BCPOUIQ5FBIOLCOOV6ANUIURXQ}

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	2026-05-18T00:27:07.801966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

089eea221d2850e589ceaf80da2291bc2019639db684f3cdd9feeffa1511ab26

Aliases

arxiv: 1712.09619 · arxiv_version: 1712.09619v1 · doi: 10.48550/arxiv.1712.09619 · pith_short_12: BCPOUIQ5FBIO · pith_short_16: BCPOUIQ5FBIOLCOO · pith_short_8: BCPOUIQ5

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/BCPOUIQ5FBIOLCOOV6ANUIURXQ \
  | 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: 089eea221d2850e589ceaf80da2291bc2019639db684f3cdd9feeffa1511ab26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dcd928320233c860d336b1fae6474400f5da78f67d5dba53131488619d7c7ddf",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2017-12-27T16:36:50Z",
    "title_canon_sha256": "d0df27485e5529b96ef7aba71b6c113aec7389ac07806bd609706761cb03c10c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.09619",
    "kind": "arxiv",
    "version": 1
  }
}