Pith Number

pith:FWIKX6SL

pith:2018:FWIKX6SLRII2ZEJUQQQAUUWNKM

not attested not anchored not stored refs pending

The Category TOF

Cole Comfort, J.R.B. Cockett

arxiv:1804.10360 v4 · 2018-04-27 · cs.LO · math.CT · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FWIKX6SLRII2ZEJUQQQAUUWNKM}

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	2026-05-17T23:55:20.874005Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d90abfa4b8a11ac913484200a52cd53391627cf492f753ce96b990e22431773

Aliases

arxiv: 1804.10360 · arxiv_version: 1804.10360v4 · doi: 10.48550/arxiv.1804.10360 · pith_short_12: FWIKX6SLRII2 · pith_short_16: FWIKX6SLRII2ZEJU · pith_short_8: FWIKX6SL

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/FWIKX6SLRII2ZEJUQQQAUUWNKM \
  | 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: 2d90abfa4b8a11ac913484200a52cd53391627cf492f753ce96b990e22431773

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "681f84412ea108fdf6356fedc33eb2943ab2cb5e596c931f4fc7edb07a890bd7",
    "cross_cats_sorted": [
      "math.CT",
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2018-04-27T06:52:42Z",
    "title_canon_sha256": "a9b2b5c2e64defcbc1524d0016f167f1985732410e60b3c31cb890216bfb45c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.10360",
    "kind": "arxiv",
    "version": 4
  }
}