Pith Number

pith:JF3NKBQB

pith:2018:JF3NKBQBN2FQJEGGE4ASQYJP5G

not attested not anchored not stored refs pending

Closed dendroidal sets and unital operads

Ieke Moerdijk

arxiv:1811.05926 v1 · 2018-11-14 · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JF3NKBQBN2FQJEGGE4ASQYJP5G}

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	2026-05-18T00:00:41.830040Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4976d506016e8b0490c6270128612fe99a2e596eda5fe6ed1c96237ffb8bc05a

Aliases

arxiv: 1811.05926 · arxiv_version: 1811.05926v1 · doi: 10.48550/arxiv.1811.05926 · pith_short_12: JF3NKBQBN2FQ · pith_short_16: JF3NKBQBN2FQJEGG · pith_short_8: JF3NKBQB

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/JF3NKBQBN2FQJEGGE4ASQYJP5G \
  | 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: 4976d506016e8b0490c6270128612fe99a2e596eda5fe6ed1c96237ffb8bc05a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "876b810a90c74e100bfdc192e7c5f20042f557c3aab28a8b26b70227c12ccf45",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2018-11-14T17:53:08Z",
    "title_canon_sha256": "e84175be10b8ed6d0d53a3d2ab51ae7348256a7fe76fe40a9774cc85fd3336fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.05926",
    "kind": "arxiv",
    "version": 1
  }
}