Pith Number

pith:WNYRFUWD

pith:2018:WNYRFUWD4HUYC6OVYPH5BLX7BG

not attested not anchored not stored refs pending

Covering and separation for logical fragments with modular predicates

Pascal Weil, Thomas Place, Varun Ramanathan

arxiv:1804.08883 v5 · 2018-04-24 · cs.LO · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WNYRFUWD4HUYC6OVYPH5BLX7BG}

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	2026-07-05T06:23:24.084062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b37112d2c3e1e98179d5c3cfd0aeff0986447b5ab07d8fbe97c685ae41afc50a

Aliases

arxiv: 1804.08883 · arxiv_version: 1804.08883v5 · doi: 10.48550/arxiv.1804.08883 · pith_short_12: WNYRFUWD4HUY · pith_short_16: WNYRFUWD4HUYC6OV · pith_short_8: WNYRFUWD

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/WNYRFUWD4HUYC6OVYPH5BLX7BG \
  | 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: b37112d2c3e1e98179d5c3cfd0aeff0986447b5ab07d8fbe97c685ae41afc50a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "506f24fc5fd8dd58d51421e9c88fad84f46f35b7b182d8ca983208df13c5b0b1",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2018-04-24T08:03:58Z",
    "title_canon_sha256": "722d3d664270ec8e34497646e6c0cd0dfe697f52c6a34bc489e8e1b7887709ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08883",
    "kind": "arxiv",
    "version": 5
  }
}