Pith Number

pith:HMBDHNCG

pith:2017:HMBDHNCGSUABGBC3Z7WPIAGKAA

not attested not anchored not stored refs pending

Universal Semantic Parsing

Mark Steedman, Mirella Lapata, Oscar T\"ackstr\"om, Siva Reddy, Slav Petrov

arxiv:1702.03196 v4 · 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{HMBDHNCGSUABGBC3Z7WPIAGKAA}

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	2026-05-18T00:36:32.612838Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b0233b446950013045bcfecf400ca0036c4ec44507a15b92296ff5030fe34fd

Aliases

arxiv: 1702.03196 · arxiv_version: 1702.03196v4 · doi: 10.48550/arxiv.1702.03196 · pith_short_12: HMBDHNCGSUAB · pith_short_16: HMBDHNCGSUABGBC3 · pith_short_8: HMBDHNCG

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/HMBDHNCGSUABGBC3Z7WPIAGKAA \
  | 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: 3b0233b446950013045bcfecf400ca0036c4ec44507a15b92296ff5030fe34fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3dff942e12b77acc198f7da70b4d56e4f7adde448a928d511ebc0424d7438492",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2017-02-10T14:57:26Z",
    "title_canon_sha256": "e521565ba73fbe3a785f3be248fad8a6d3227c40e84f228f51d0cffacc43ed49"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.03196",
    "kind": "arxiv",
    "version": 4
  }
}