Pith Number

pith:ACKDB2E4

pith:2017:ACKDB2E4MHM5QRPDDV6R7ODVVO

not attested not anchored not stored refs pending

Structural Embedding of Syntactic Trees for Machine Comprehension

Eric Nyberg, Junjie Hu, Rui Liu, Wei Wei, Zi Yang

arxiv:1703.00572 v3 · 2017-03-02 · 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{ACKDB2E4MHM5QRPDDV6R7ODVVO}

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	2026-05-18T00:36:14.237334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

009430e89c61d9d845e31d7d1fb875ab850b1bb42314ef2891b169f1464c7075

Aliases

arxiv: 1703.00572 · arxiv_version: 1703.00572v3 · doi: 10.48550/arxiv.1703.00572 · pith_short_12: ACKDB2E4MHM5 · pith_short_16: ACKDB2E4MHM5QRPD · pith_short_8: ACKDB2E4

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/ACKDB2E4MHM5QRPDDV6R7ODVVO \
  | 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: 009430e89c61d9d845e31d7d1fb875ab850b1bb42314ef2891b169f1464c7075

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2c4493410a6ac0ba45ffca876c0ea03e5eec1ddf3e1b91369aa364e7c9cc3d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2017-03-02T01:08:10Z",
    "title_canon_sha256": "481e417259532a8abe86dab5e76e7a5ab3061b1029c8b01751a091a5e69b2f83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.00572",
    "kind": "arxiv",
    "version": 3
  }
}