Pith Number

pith:HBWJT4T5

pith:2017:HBWJT4T562Z7ZHGCWKCYAHLGCW

not attested not anchored not stored refs pending

On the Quest for an Acyclic Graph

Mikolas Janota, Radu Grigore, Vasco Manquinho

arxiv:1708.01745 v2 · 2017-08-05 · 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{HBWJT4T562Z7ZHGCWKCYAHLGCW}

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	2026-05-18T00:33:31.812303Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

386c99f27df6b3fc9cc2b285801d66159dcaa59df67b5a37e812215a29409ec9

Aliases

arxiv: 1708.01745 · arxiv_version: 1708.01745v2 · doi: 10.48550/arxiv.1708.01745 · pith_short_12: HBWJT4T562Z7 · pith_short_16: HBWJT4T562Z7ZHGC · pith_short_8: HBWJT4T5

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/HBWJT4T562Z7ZHGCWKCYAHLGCW \
  | 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: 386c99f27df6b3fc9cc2b285801d66159dcaa59df67b5a37e812215a29409ec9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5077e3abc8393794a6488edbe827e66180dd8600de967bd961a55eb91b661efb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2017-08-05T10:28:43Z",
    "title_canon_sha256": "da8da30f176678171f6edcb96d73c187640ff18a2d15e3c08c6bfcd9ec46f5ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.01745",
    "kind": "arxiv",
    "version": 2
  }
}