Pith Number

pith:TP7ZFO54

pith:2015:TP7ZFO54C3WDE6V5UYTYJ53NKA

not attested not anchored not stored refs pending

Compact spaces with a $\mathbb{P}$-diagonal

Alan Dow, Klaas Pieter Hart

arxiv:1508.01541 v2 · 2015-08-06 · math.GN · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TP7ZFO54C3WDE6V5UYTYJ53NKA}

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	2026-05-18T01:06:29.156502Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9bff92bbbc16ec327abda62784f76d5004f32191f6e92f5b7d0bb3289a9c87f5

Aliases

arxiv: 1508.01541 · arxiv_version: 1508.01541v2 · doi: 10.48550/arxiv.1508.01541 · pith_short_12: TP7ZFO54C3WD · pith_short_16: TP7ZFO54C3WDE6V5 · pith_short_8: TP7ZFO54

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/TP7ZFO54C3WDE6V5UYTYJ53NKA \
  | 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: 9bff92bbbc16ec327abda62784f76d5004f32191f6e92f5b7d0bb3289a9c87f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42df80659c2a9141c4993e618ca4f75fe34c86ad041b70695a5c1ba1efef7ded",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GN",
    "submitted_at": "2015-08-06T20:53:46Z",
    "title_canon_sha256": "eb8e3ce794b6d88da7eb5116fb811186fd4b7d62ab90a3e9f3a9e903b4392ec7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.01541",
    "kind": "arxiv",
    "version": 2
  }
}