Pith Number

pith:IXT3Z4AT

pith:2011:IXT3Z4ATT2EA764J65P2UZRU3W

not attested not anchored not stored refs pending

Introduction to Categories and Categorical Logic

Nikos Tzevelekos, Samson Abramsky

arxiv:1102.1313 v1 · 2011-02-07 · math.CT · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IXT3Z4ATT2EA764J65P2UZRU3W}

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	2026-05-18T02:03:15.951657Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45e7bcf0139e880ffb89f75faa6634ddb2ced9fe9027fb8e5e1b078056bb7240

Aliases

arxiv: 1102.1313 · arxiv_version: 1102.1313v1 · doi: 10.48550/arxiv.1102.1313 · pith_short_12: IXT3Z4ATT2EA · pith_short_16: IXT3Z4ATT2EA764J · pith_short_8: IXT3Z4AT

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/IXT3Z4ATT2EA764J65P2UZRU3W \
  | 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: 45e7bcf0139e880ffb89f75faa6634ddb2ced9fe9027fb8e5e1b078056bb7240

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f58c631b0eb036304c2308d0ec6052bda4569d904fd8ff0756cc9e94e9a63a2",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2011-02-07T14:23:34Z",
    "title_canon_sha256": "77f960644337efda24ef22792cf1f76365c4888fa240f1f9889d24e03d95e5e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.1313",
    "kind": "arxiv",
    "version": 1
  }
}