Pith Number

pith:UGE4ZS3R

pith:2017:UGE4ZS3R4Q367SHRFYSKGEFKUI

not attested not anchored not stored refs pending

An annotated bibliography on 1-planarity

Fabrizio Montecchiani, Giuseppe Liotta, Stephen G. Kobourov

arxiv:1703.02261 v3 · 2017-03-07 · 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{UGE4ZS3R4Q367SHRFYSKGEFKUI}

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	2026-05-18T00:39:56.624336Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a189cccb71e437efc8f12e24a310aaa20a5be83639f40c4253a045d5b132b902

Aliases

arxiv: 1703.02261 · arxiv_version: 1703.02261v3 · doi: 10.48550/arxiv.1703.02261 · pith_short_12: UGE4ZS3R4Q36 · pith_short_16: UGE4ZS3R4Q367SHR · pith_short_8: UGE4ZS3R

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/UGE4ZS3R4Q367SHRFYSKGEFKUI \
  | 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: a189cccb71e437efc8f12e24a310aaa20a5be83639f40c4253a045d5b132b902

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e1c9d3150559282032b2fd2c641e07fab5e306dd08d96e1149f4d605a63a5b6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2017-03-07T08:02:33Z",
    "title_canon_sha256": "2f08790f0899d2ce1049a90f4742821bd41dff87f55de476fe3454cf41c67d27"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.02261",
    "kind": "arxiv",
    "version": 3
  }
}