Pith Number

pith:V2UEQ3EL

pith:2010:V2UEQ3ELDOBBFHN52RUFRV2EMY

not attested not anchored not stored refs pending

A categorical approach to internality

Moshe Kamensky

arxiv:1012.3185 v1 · 2010-12-14 · math.LO · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{V2UEQ3ELDOBBFHN52RUFRV2EMY}

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	2026-05-18T04:33:17.566614Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aea8486c8b1b82129dbdd46858d744660306a2becfa5436ab4020f5fdcceb2dd

Aliases

arxiv: 1012.3185 · arxiv_version: 1012.3185v1 · doi: 10.48550/arxiv.1012.3185 · pith_short_12: V2UEQ3ELDOBB · pith_short_16: V2UEQ3ELDOBBFHN5 · pith_short_8: V2UEQ3EL

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/V2UEQ3ELDOBBFHN52RUFRV2EMY \
  | 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: aea8486c8b1b82129dbdd46858d744660306a2becfa5436ab4020f5fdcceb2dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e980e6af3090525afeb5e62505e750bcd1097520b65a5acd52ba3d75afcc6da6",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2010-12-14T22:04:50Z",
    "title_canon_sha256": "f17d7cb723cf0cb1234e02a1c56b5f32a9bed090d0e1a44e4c0f3d92ce2e9532"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.3185",
    "kind": "arxiv",
    "version": 1
  }
}