Pith Number

pith:4HXNFEXV

pith:2016:4HXNFEXVJAPN5BGXHL2BE277Y2

not attested not anchored not stored refs pending

1-bend Upward Planar Drawings of SP-digraphs

Emilio Di Giacomo, Fabrizio Montecchiani, Giuseppe Liotta

arxiv:1608.08425 v1 · 2016-08-30 · 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{4HXNFEXVJAPN5BGXHL2BE277Y2}

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	2026-05-18T01:07:18.154328Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1eed292f5481ede84d73af4126bffc6851ff359b74665e73940b872ccc0c9f9

Aliases

arxiv: 1608.08425 · arxiv_version: 1608.08425v1 · doi: 10.48550/arxiv.1608.08425 · pith_short_12: 4HXNFEXVJAPN · pith_short_16: 4HXNFEXVJAPN5BGX · pith_short_8: 4HXNFEXV

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/4HXNFEXVJAPN5BGXHL2BE277Y2 \
  | 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: e1eed292f5481ede84d73af4126bffc6851ff359b74665e73940b872ccc0c9f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e856b83158f2f5dd74259af1ee0d48fda4f71fa11faecbef62678d26ed2ec3b2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2016-08-30T12:40:40Z",
    "title_canon_sha256": "534985e7c98c6083d3bb9a7dc4beca6ef54debe5a3c7a689f37e923554f93fdb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.08425",
    "kind": "arxiv",
    "version": 1
  }
}