Pith Number

pith:A7PF6ZSW

pith:2017:A7PF6ZSWW65BDDBVSJXC56UBOS

not attested not anchored not stored refs pending

Universal Dependencies to Logical Forms with Negation Scope

Adam Lopez, Bonnie Webber, Federico Fancellu, Siva Reddy

arxiv:1702.03305 v1 · 2017-02-10 · 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{A7PF6ZSWW65BDDBVSJXC56UBOS}

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	2026-05-18T00:50:54.034813Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07de5f6656b7ba118c35926e2efa8174b2598955c482578bb788f3592cafc582

Aliases

arxiv: 1702.03305 · arxiv_version: 1702.03305v1 · doi: 10.48550/arxiv.1702.03305 · pith_short_12: A7PF6ZSWW65B · pith_short_16: A7PF6ZSWW65BDDBV · pith_short_8: A7PF6ZSW

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/A7PF6ZSWW65BDDBVSJXC56UBOS \
  | 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: 07de5f6656b7ba118c35926e2efa8174b2598955c482578bb788f3592cafc582

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ae09ed1398dab205a2ce5b95945d3f3250f7b2dc381f20bcd66cc9070cc4983",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2017-02-10T19:16:40Z",
    "title_canon_sha256": "8c3708fd33dd15b98a366dfb138a4e92105af5717b4bed5e8df4c7968b064586"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.03305",
    "kind": "arxiv",
    "version": 1
  }
}