Pith Number

pith:F7UYUNGP

pith:2018:F7UYUNGPLPIUKTAV2TZBDMGPUZ

not attested not anchored not stored refs pending

A semi-model structure for Grothendieck weak 3-groupoids

Edoardo Lanari

arxiv:1809.07923 v1 · 2018-09-21 · 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{F7UYUNGPLPIUKTAV2TZBDMGPUZ}

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.

Cited by

1 paper in Pith

An Inductive Strategy Towards a Solution to the Generalized Homotopy Hypothesis

Receipt and verification

First computed	2026-05-18T00:05:10.891176Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fe98a34cf5bd1454c15d4f211b0cfa672a35fbe2fbbd138acd19e7338c173d3

Aliases

arxiv: 1809.07923 · arxiv_version: 1809.07923v1 · doi: 10.48550/arxiv.1809.07923 · pith_short_12: F7UYUNGPLPIU · pith_short_16: F7UYUNGPLPIUKTAV · pith_short_8: F7UYUNGP

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/F7UYUNGPLPIUKTAV2TZBDMGPUZ \
  | 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: 2fe98a34cf5bd1454c15d4f211b0cfa672a35fbe2fbbd138acd19e7338c173d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2af1c8424d7da4b30aae07dd2a00805c4d0368f4352334a8fdd2281d6435a073",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2018-09-21T02:55:16Z",
    "title_canon_sha256": "570009f2f73f7e46af80fc28a08728b4e6cb2ccf5eed2dab6e48cd9df6a0eb65"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.07923",
    "kind": "arxiv",
    "version": 1
  }
}