Pith Number

pith:2H2O3ZMR

pith:2018:2H2O3ZMRXOFZN6QOGOZO75AQSV

not attested not anchored not stored refs pending

The combination of context information to enhance simple question answering

Lin Li, Zhaohui Chao

arxiv:1810.04000 v1 · 2018-10-09 · cs.AI · 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{2H2O3ZMRXOFZN6QOGOZO75AQSV}

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	2026-05-18T00:03:44.113779Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1f4ede591bb8b96fa0e33b2eff41095638fe3e3dc383907aa583574126e86b8

Aliases

arxiv: 1810.04000 · arxiv_version: 1810.04000v1 · doi: 10.48550/arxiv.1810.04000 · pith_short_12: 2H2O3ZMRXOFZ · pith_short_16: 2H2O3ZMRXOFZN6QO · pith_short_8: 2H2O3ZMR

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/2H2O3ZMRXOFZN6QOGOZO75AQSV \
  | 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: d1f4ede591bb8b96fa0e33b2eff41095638fe3e3dc383907aa583574126e86b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ac91f836b1fb3e02cb917ef70d86a72e3b2fc550294576643c19baafa9b8d86",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2018-10-09T14:02:56Z",
    "title_canon_sha256": "21ce48a19a719488087fb11c915d7cdd80784f4eb8c54accbfe58ea7428d307b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.04000",
    "kind": "arxiv",
    "version": 1
  }
}