Pith Number

pith:K3MRT4EH

pith:2010:K3MRT4EHJR2D4AB2YHFLHIIAOK

not attested not anchored not stored refs pending

Coarse Geometry and P. A. Smith Theory

Ian Hambleton, Lucian Savin

arxiv:1007.0495 v2 · 2010-07-03 · math.GT · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K3MRT4EHJR2D4AB2YHFLHIIAOK}

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	2026-05-18T03:34:03.750372Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56d919f0874c743e003ac1cab3a10072930b8492df7e4166476c70272b077194

Aliases

arxiv: 1007.0495 · arxiv_version: 1007.0495v2 · doi: 10.48550/arxiv.1007.0495 · pith_short_12: K3MRT4EHJR2D · pith_short_16: K3MRT4EHJR2D4AB2 · pith_short_8: K3MRT4EH

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/K3MRT4EHJR2D4AB2YHFLHIIAOK \
  | 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: 56d919f0874c743e003ac1cab3a10072930b8492df7e4166476c70272b077194

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4a43a6df5a4a4302daa834a5f805d8029e0458ff3fb832ced5902157585cfab",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2010-07-03T13:42:44Z",
    "title_canon_sha256": "320a260421f9c7a4ff5b300295e807d1bf2c2263aeca5b87b8fa1a317c4ea4db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.0495",
    "kind": "arxiv",
    "version": 2
  }
}