Pith Number

pith:544BHQDP

pith:2022:544BHQDP7JQCNPVY75F7T7TLNQ

not attested not anchored not stored refs pending

On the Lambek embedding and the category of product-preserving presheaves

Kohei Kishida, Neil J. Ross, Peng Fu, Peter Selinger

arxiv:2205.06068 v1 · 2022-05-12 · 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{544BHQDP7JQCNPVY75F7T7TLNQ}

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

Quantalic lambda-calculus and additive disjunction

Receipt and verification

First computed	2026-07-05T04:22:45.168012Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef3813c06ffa6026beb8ff4bf9fe6b6c021638c0cb6cda92a18039d662d33094

Aliases

arxiv: 2205.06068 · arxiv_version: 2205.06068v1 · doi: 10.48550/arxiv.2205.06068 · pith_short_12: 544BHQDP7JQC · pith_short_16: 544BHQDP7JQCNPVY · pith_short_8: 544BHQDP

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/544BHQDP7JQCNPVY75F7T7TLNQ \
  | 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: ef3813c06ffa6026beb8ff4bf9fe6b6c021638c0cb6cda92a18039d662d33094

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba02802d02d324f23af15f4ce5f1ca1ac97107748e9df01d4ef3b9f1ef7a3677",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2022-05-12T13:02:25Z",
    "title_canon_sha256": "cb0ea1bf867348c2cea90423df30535dc8dcd5366423613f4f8a508407c76298"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.06068",
    "kind": "arxiv",
    "version": 1
  }
}