Pith Number

pith:AWWH4HD2

pith:2019:AWWH4HD2Z54ECNSI5BAENHABJ4

not attested not anchored not stored refs pending

AMR Parsing as Sequence-to-Graph Transduction

Benjamin Van Durme, Kevin Duh, Sheng Zhang, Xutai Ma

arxiv:1905.08704 v2 · 2019-05-21 · 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{AWWH4HD2Z54ECNSI5BAENHABJ4}

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	2026-05-17T23:42:41.599908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05ac7e1c7acf78413648e840469c014f365fae10f4e946cc33c069134fe44ad3

Aliases

arxiv: 1905.08704 · arxiv_version: 1905.08704v2 · doi: 10.48550/arxiv.1905.08704 · pith_short_12: AWWH4HD2Z54E · pith_short_16: AWWH4HD2Z54ECNSI · pith_short_8: AWWH4HD2

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/AWWH4HD2Z54ECNSI5BAENHABJ4 \
  | 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: 05ac7e1c7acf78413648e840469c014f365fae10f4e946cc33c069134fe44ad3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17de925a860fd8618a4a8283f54f67d88b3a1883e800f2e10191321d52e665f2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-05-21T15:41:18Z",
    "title_canon_sha256": "d7d63468c47a4af5524d84a567286b2cd78262e57f3e3724ca42a3833a64adef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.08704",
    "kind": "arxiv",
    "version": 2
  }
}