Pith Number

pith:EFP4YY3M

pith:2017:EFP4YY3MDIMUW67N327L5ALTJR

not attested not anchored not stored refs pending

Hierarchical Partial Planarity

Michael A. Bekos, Patrizio Angelini

arxiv:1707.06844 v1 · 2017-07-21 · 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{EFP4YY3MDIMUW67N327L5ALTJR}

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	2026-05-18T00:39:51.400651Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

215fcc636c1a194b7beddebebe81734c4ff0685575958b3e671f8e9062e7f63c

Aliases

arxiv: 1707.06844 · arxiv_version: 1707.06844v1 · doi: 10.48550/arxiv.1707.06844 · pith_short_12: EFP4YY3MDIMU · pith_short_16: EFP4YY3MDIMUW67N · pith_short_8: EFP4YY3M

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/EFP4YY3MDIMUW67N327L5ALTJR \
  | 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: 215fcc636c1a194b7beddebebe81734c4ff0685575958b3e671f8e9062e7f63c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "777c6e89bbb28e87ea098f522e3a8fcc461d64ab5d305d19f9305132d81d4eb9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-07-21T11:17:27Z",
    "title_canon_sha256": "737e585131c7e9b4061f4736550d1c2ef8953408929547b87aee90aafaf0c2df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.06844",
    "kind": "arxiv",
    "version": 1
  }
}