Pith Number

pith:E5KOG5EQ

pith:2016:E5KOG5EQTYEZYWXCTNQ4NQVQCC

not attested not anchored not stored refs pending

Covering many points with a small-area box

Christian Knauer, David Eppstein, Mark de Berg, Otfried Cheong, Sergio Cabello

arxiv:1612.02149 v2 · 2016-12-07 · 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{E5KOG5EQTYEZYWXCTNQ4NQVQCC}

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	2026-05-17T23:40:56.341888Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2754e374909e099c5ae29b61c6c2b01082cadad784d25f95574be67b8a95b016

Aliases

arxiv: 1612.02149 · arxiv_version: 1612.02149v2 · doi: 10.48550/arxiv.1612.02149 · pith_short_12: E5KOG5EQTYEZ · pith_short_16: E5KOG5EQTYEZYWXC · pith_short_8: E5KOG5EQ

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/E5KOG5EQTYEZYWXCTNQ4NQVQCC \
  | 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: 2754e374909e099c5ae29b61c6c2b01082cadad784d25f95574be67b8a95b016

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b92ffe7bdbe588cee611d9dcd77b7b61a1f4c7dba07eaf163a4d0ba4a701fd6a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2016-12-07T08:41:46Z",
    "title_canon_sha256": "05da11f526e667219e03538636642c8cc50f83d8da0abdaf4e0700de212e0f32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.02149",
    "kind": "arxiv",
    "version": 2
  }
}