Pith Number

pith:44KKKQFY

pith:2018:44KKKQFY3K6NASHAYW7JVDQ3VO

not attested not anchored not stored refs pending

Two monads for graphs

Mikolaj Bojanczyk

arxiv:1804.09408 v1 · 2018-04-25 · 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{44KKKQFY3K6NASHAYW7JVDQ3VO}

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	2026-05-18T00:17:31.895091Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e714a540b8dabcd048e0c5be9a8e1baba58f40dd462204cd3494c4ea0da61a96

Aliases

arxiv: 1804.09408 · arxiv_version: 1804.09408v1 · doi: 10.48550/arxiv.1804.09408 · pith_short_12: 44KKKQFY3K6N · pith_short_16: 44KKKQFY3K6NASHA · pith_short_8: 44KKKQFY

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/44KKKQFY3K6NASHAYW7JVDQ3VO \
  | 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: e714a540b8dabcd048e0c5be9a8e1baba58f40dd462204cd3494c4ea0da61a96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2320efd03a10ba34f188e7a489bd271ab3b445d6f73e1b0158d965ad933e8caa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2018-04-25T07:52:32Z",
    "title_canon_sha256": "73311afa6bbf01283cea55b7a126e3d7e458f610d95e26fb2118a03c5f10736a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.09408",
    "kind": "arxiv",
    "version": 1
  }
}