Pith Number

pith:WKG254QW

pith:2011:WKG254QWK5MQYGIVBXOEBLSOBT

not attested not anchored not stored refs pending

A 2-Categorical Analysis of the Tripos-to-Topos Construction

Jonas Frey

arxiv:1104.2776 v1 · 2011-04-14 · 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{WKG254QWK5MQYGIVBXOEBLSOBT}

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	2026-05-18T04:24:26.851584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b28daef21657590c19150ddc40ae4e0cd7ff79c9c68ece9981bb70314a96dc6a

Aliases

arxiv: 1104.2776 · arxiv_version: 1104.2776v1 · doi: 10.48550/arxiv.1104.2776 · pith_short_12: WKG254QWK5MQ · pith_short_16: WKG254QWK5MQYGIV · pith_short_8: WKG254QW

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/WKG254QWK5MQYGIVBXOEBLSOBT \
  | 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: b28daef21657590c19150ddc40ae4e0cd7ff79c9c68ece9981bb70314a96dc6a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e6572e870839b86e5cf7c6c6b282e940026e09416c3f1f32191d5336d77a9cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2011-04-14T14:32:14Z",
    "title_canon_sha256": "56bd157c9a2e3a50854543cd3c2a56042ff0fb37503387155b9a2eba5546ab45"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2776",
    "kind": "arxiv",
    "version": 1
  }
}