Pith Number

pith:6YT5WAM6

pith:2020:6YT5WAM6A5E7XBMLG4PJ3LTCYY

not attested not anchored not stored refs pending

Combinatorial and accessible weak model categories

Simon Henry

arxiv:2005.02360 v2 · 2020-05-05 · math.CT · 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{6YT5WAM6A5E7XBMLG4PJ3LTCYY}

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	2026-07-05T01:54:28.357066Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f627db019e0749fb858b371e9dae62c603d2a12d29e5bdcb224539e5dd43aaa5

Aliases

arxiv: 2005.02360 · arxiv_version: 2005.02360v2 · doi: 10.48550/arxiv.2005.02360 · pith_short_12: 6YT5WAM6A5E7 · pith_short_16: 6YT5WAM6A5E7XBML · pith_short_8: 6YT5WAM6

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/6YT5WAM6A5E7XBMLG4PJ3LTCYY \
  | 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: f627db019e0749fb858b371e9dae62c603d2a12d29e5bdcb224539e5dd43aaa5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa3109fd5b20f8caa0976d479ff9ec803fa1d3b9aee6f1c9b77f998a5229f619",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2020-05-05T17:45:04Z",
    "title_canon_sha256": "5171c3f1bf2f43c23caa9a2f0105db048472ffa3dfbf62f6ef434500ee18f5c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.02360",
    "kind": "arxiv",
    "version": 2
  }
}