Pith Number

pith:UQVEV3LV

pith:2015:UQVEV3LV2D5XWU6GPEJP4TWZXZ

not attested not anchored not stored refs pending

New Complexity Results and Algorithms for the Minimum Tollbooth Problem

Evdokia Nikolova, Soumya Basu, Thanasis Lianeas

arxiv:1509.07260 v2 · 2015-09-24 · cs.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UQVEV3LV2D5XWU6GPEJP4TWZXZ}

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	2026-05-18T01:31:59.884949Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a42a4aed75d0fb7b53c67912fe4ed9be6244025649b95618b2efc7f21f52ab45

Aliases

arxiv: 1509.07260 · arxiv_version: 1509.07260v2 · doi: 10.48550/arxiv.1509.07260 · pith_short_12: UQVEV3LV2D5X · pith_short_16: UQVEV3LV2D5XWU6G · pith_short_8: UQVEV3LV

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/UQVEV3LV2D5XWU6GPEJP4TWZXZ \
  | 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: a42a4aed75d0fb7b53c67912fe4ed9be6244025649b95618b2efc7f21f52ab45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "952d126a296a887c90262e4ff8edafa63b828337923acdb55585b4166adde4cf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GT",
    "submitted_at": "2015-09-24T07:16:42Z",
    "title_canon_sha256": "d29ae2e7330aab98ed219d586006331d80afbd06d678acf5e0ec1ed55d805230"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.07260",
    "kind": "arxiv",
    "version": 2
  }
}