Pith Number

pith:NP34LJYK

pith:2018:NP34LJYKFIGYQ4VHA3Z2LNWLZW

not attested not anchored not stored refs pending

Towards Automated Customer Support

Ivan Koychev, Momchil Hardalov, Preslav Nakov

arxiv:1809.00303 v1 · 2018-09-02 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NP34LJYKFIGYQ4VHA3Z2LNWLZW}

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	2026-05-18T00:06:35.551828Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bf7c5a70a2a0d8872a706f3a5b6cbcd9a03581c6ca93318fd702b240cc437ab

Aliases

arxiv: 1809.00303 · arxiv_version: 1809.00303v1 · doi: 10.48550/arxiv.1809.00303 · pith_short_12: NP34LJYKFIGY · pith_short_16: NP34LJYKFIGYQ4VH · pith_short_8: NP34LJYK

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/NP34LJYKFIGYQ4VHA3Z2LNWLZW \
  | 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: 6bf7c5a70a2a0d8872a706f3a5b6cbcd9a03581c6ca93318fd702b240cc437ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e7e1fca1b230067b555004faaf97b893b31523635b666554ed5de2d75e894ba",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2018-09-02T06:22:39Z",
    "title_canon_sha256": "8d2d6992392fb3fd9d89b9a02210e65a5148f370cb520ffa9ed0d8f6bc5e1c6a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.00303",
    "kind": "arxiv",
    "version": 1
  }
}