Pith Number

pith:HMHR5IEK

pith:2017:HMHR5IEK6QQQ4DYSEXCKTYH24L

not attested not anchored not stored refs pending

On Vertex- and Empty-Ply Proximity Drawings

Felice De Luca, Jan Kratochvil, Jaroslav Hancl Jr., Jiri Fiala, Michael Kaufmann, Niklas Heinsohn, Patrizio Angelini, Pavel Valtr, Stephen Kobourov, Steven Chaplick

arxiv:1708.09233 v2 · 2017-08-30 · 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{HMHR5IEK6QQQ4DYSEXCKTYH24L}

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	2026-05-18T00:35:50.954675Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b0f1ea08af4210e0f1225c4a9e0fae2eca25e90d3c0e2e557582a035b1df5fc

Aliases

arxiv: 1708.09233 · arxiv_version: 1708.09233v2 · doi: 10.48550/arxiv.1708.09233 · pith_short_12: HMHR5IEK6QQQ · pith_short_16: HMHR5IEK6QQQ4DYS · pith_short_8: HMHR5IEK

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/HMHR5IEK6QQQ4DYSEXCKTYH24L \
  | 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: 3b0f1ea08af4210e0f1225c4a9e0fae2eca25e90d3c0e2e557582a035b1df5fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "850cba8efcb1c13a18e2ca0f1b5a49f81e3a5a0535bddf6f8c8fbea179d52c48",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-08-30T12:24:25Z",
    "title_canon_sha256": "90e17851380fcc5974fd59d5301dbc004f68c46ddd2c6d78ded257361b9167ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.09233",
    "kind": "arxiv",
    "version": 2
  }
}