Pith Number

pith:UEEMJCZA

pith:2014:UEEMJCZAOA4N44Y2YBMEUIIPHI

not attested not anchored not stored refs pending

Watsonsim: Overview of a Question Answering Engine

Adarsh Avadhani, Sean Gallagher, Walid Shalaby, Wlodek Zadrozny

arxiv:1412.0879 v1 · 2014-12-02 · cs.CL · cs.IR

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

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	2026-05-18T02:32:20.978155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a108c48b207038de731ac0584a210f3a2dc4bd8e12f5221a409849cb88f46fad

Aliases

arxiv: 1412.0879 · arxiv_version: 1412.0879v1 · doi: 10.48550/arxiv.1412.0879 · pith_short_12: UEEMJCZAOA4N · pith_short_16: UEEMJCZAOA4N44Y2 · pith_short_8: UEEMJCZA

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/UEEMJCZAOA4N44Y2YBMEUIIPHI \
  | 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: a108c48b207038de731ac0584a210f3a2dc4bd8e12f5221a409849cb88f46fad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7af1632805a221b4f2bf6e5f041d8e3cc64c49ff84e3d569b60a734a2e70dbd9",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2014-12-02T12:15:18Z",
    "title_canon_sha256": "cf38337d87fca88478d653b5344904ffbd9dd21e61b84e9ec44454fd3386c64a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.0879",
    "kind": "arxiv",
    "version": 1
  }
}