Pith Number

pith:HNMMGEDE

pith:2018:HNMMGEDEIW2BQTANK63MUO5FGA

not attested not anchored not stored refs pending

A 44-element mesh of Schneiders' pyramid: bounding the difficulty of hex-meshing problems

Jean-Fran\c{c}ois Remacle, Jeanne Pellerin, Kilian Verhetsel

arxiv:1806.01022 v2 · 2018-06-04 · 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{HNMMGEDEIW2BQTANK63MUO5FGA}

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	2026-05-18T00:05:13.978138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b58c3106445b4184c0d57b6ca3ba5303ec59e8b5a59b336ef4cb2160a0f37cd

Aliases

arxiv: 1806.01022 · arxiv_version: 1806.01022v2 · doi: 10.48550/arxiv.1806.01022 · pith_short_12: HNMMGEDEIW2B · pith_short_16: HNMMGEDEIW2BQTAN · pith_short_8: HNMMGEDE

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/HNMMGEDEIW2BQTANK63MUO5FGA \
  | 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: 3b58c3106445b4184c0d57b6ca3ba5303ec59e8b5a59b336ef4cb2160a0f37cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42f4cd9bb95d2af3360a1090362654482f23afa5639f5a21818384252b6d3fa9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2018-06-04T09:20:25Z",
    "title_canon_sha256": "9102425cbdd89b8e19f41837ee8366bc67cd06eab50c74a4eb863404935482ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.01022",
    "kind": "arxiv",
    "version": 2
  }
}