Pith Number

pith:X63PRE5E

pith:2014:X63PRE5ELFWAXMNDTQ7EWJGIMH

not attested not anchored not stored refs pending

Spatial Modelling Techniques in Microsoft Excel

Stephen Allen

arxiv:1401.7821 v1 · 2014-01-30 · cs.HC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X63PRE5ELFWAXMNDTQ7EWJGIMH}

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	2026-05-18T03:00:38.286961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfb6f893a4596c0bb1a39c3e4b24c861d9877e37508e02ff646d01b8519b9642

Aliases

arxiv: 1401.7821 · arxiv_version: 1401.7821v1 · doi: 10.48550/arxiv.1401.7821 · pith_short_12: X63PRE5ELFWA · pith_short_16: X63PRE5ELFWAXMND · pith_short_8: X63PRE5E

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/X63PRE5ELFWAXMNDTQ7EWJGIMH \
  | 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: bfb6f893a4596c0bb1a39c3e4b24c861d9877e37508e02ff646d01b8519b9642

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f68b4ecdc756339109188646f8d575eb6c4e24827ca00fbab5bb900c5a317ff7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2014-01-30T12:29:46Z",
    "title_canon_sha256": "4e6bd5a221d74cac58e3bb2d9e8b58675ff9026c05cfac99fd86e84ec61fe36d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.7821",
    "kind": "arxiv",
    "version": 1
  }
}