Pith Number

pith:C54BV5ER

pith:2010:C54BV5ERM2KAHRS6LQGQE2PAQJ

not attested not anchored not stored refs pending

Measuring Shape with Topology

Benjamin Schweinhart, Robert MacPherson

arxiv:1011.2258 v2 · 2010-11-10 · math.AT · cond-mat.mtrl-sci · cs.CG · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C54BV5ERM2KAHRS6LQGQE2PAQJ}

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	2026-05-18T04:33:04.036778Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17781af491669403c65e5c0d0269e0826e8f11cbfb5e9ab4fe6bc324357e8a97

Aliases

arxiv: 1011.2258 · arxiv_version: 1011.2258v2 · doi: 10.48550/arxiv.1011.2258 · pith_short_12: C54BV5ERM2KA · pith_short_16: C54BV5ERM2KAHRS6 · pith_short_8: C54BV5ER

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/C54BV5ERM2KAHRS6LQGQE2PAQJ \
  | 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: 17781af491669403c65e5c0d0269e0826e8f11cbfb5e9ab4fe6bc324357e8a97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1530d8e22862d5954679ab3dc384c40b3b17020ef8cb9efa3fe06487e00d249",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci",
      "cs.CG",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2010-11-10T02:11:15Z",
    "title_canon_sha256": "0ee7bb8534b89e0c4f7aef69b092889029c1d47911ce1023ffa68e3916ac5fd3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.2258",
    "kind": "arxiv",
    "version": 2
  }
}