Pith Number

pith:ARJHFYMG

pith:2021:ARJHFYMGKYH2JWTNKQOZZP3ATK

not attested not anchored not stored refs pending

Learning Hierarchical Structures with Differentiable Nondeterministic Stacks

Brian DuSell, David Chiang

arxiv:2109.01982 v3 · 2021-09-05 · 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{ARJHFYMGKYH2JWTNKQOZZP3ATK}

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.

Cited by

1 paper in Pith

A Systematic Study of Compositional Syntactic Transformer Language Models

Receipt and verification

First computed	2026-07-05T05:20:58.581222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

045272e186560fa4da6d541d9cbf609ab5b8eee96f7987673f85d9ee43a927d7

Aliases

arxiv: 2109.01982 · arxiv_version: 2109.01982v3 · doi: 10.48550/arxiv.2109.01982 · pith_short_12: ARJHFYMGKYH2 · pith_short_16: ARJHFYMGKYH2JWTN · pith_short_8: ARJHFYMG

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/ARJHFYMGKYH2JWTNKQOZZP3ATK \
  | 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: 045272e186560fa4da6d541d9cbf609ab5b8eee96f7987673f85d9ee43a927d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f7ffe01a8bfc67dbef75bdccc5cba3bdbd4361c9322249d81998bb53b5d2e49a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2021-09-05T03:25:23Z",
    "title_canon_sha256": "c224b131a7f32ad22b1f02dad5c6f7924a7f2b4c4dc9388fb184d793b3243c14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.01982",
    "kind": "arxiv",
    "version": 3
  }
}