Pith Number

pith:IJJUAZHD

pith:2010:IJJUAZHDUZ44PS42CA265ERDIK

not attested not anchored not stored refs pending

Topological and simplicial models of identity types

Benno van den Berg, Richard Garner

arxiv:1007.4638 v2 · 2010-07-27 · 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{IJJUAZHDUZ44PS42CA265ERDIK}

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	2026-05-18T04:10:58.871085Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42534064e3a679c7cb9a1035ee92234287cca227dfd6ec6399b0041bfa53da48

Aliases

arxiv: 1007.4638 · arxiv_version: 1007.4638v2 · doi: 10.48550/arxiv.1007.4638 · pith_short_12: IJJUAZHDUZ44 · pith_short_16: IJJUAZHDUZ44PS42 · pith_short_8: IJJUAZHD

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/IJJUAZHDUZ44PS42CA265ERDIK \
  | 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: 42534064e3a679c7cb9a1035ee92234287cca227dfd6ec6399b0041bfa53da48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48d74e15868cdb7ac8280f93f9764e16c1003062fc9409ade5092e94e4884d86",
    "cross_cats_sorted": [
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2010-07-27T08:30:04Z",
    "title_canon_sha256": "87a423e55e84de94a9b1aa41309e001a0cdd8947c0d048a33948f0bada98f9c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.4638",
    "kind": "arxiv",
    "version": 2
  }
}