Pith Number

pith:JR5LZNSZ

pith:2016:JR5LZNSZHB6R6S5FGP6CVGOKBA

not attested not anchored not stored refs pending

Span-Based Constituency Parsing with a Structure-Label System and Provably Optimal Dynamic Oracles

James Cross, Liang Huang

arxiv:1612.06475 v1 · 2016-12-20 · 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{JR5LZNSZHB6R6S5FGP6CVGOKBA}

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	2026-05-18T00:54:25.732386Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c7abcb659387d1f4ba533fc2a99ca080356fe943c43319b1e6b2965f363b900

Aliases

arxiv: 1612.06475 · arxiv_version: 1612.06475v1 · doi: 10.48550/arxiv.1612.06475 · pith_short_12: JR5LZNSZHB6R · pith_short_16: JR5LZNSZHB6R6S5F · pith_short_8: JR5LZNSZ

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/JR5LZNSZHB6R6S5FGP6CVGOKBA \
  | 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: 4c7abcb659387d1f4ba533fc2a99ca080356fe943c43319b1e6b2965f363b900

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b343370073d2a30322d32e206fabecf9c6f997bfea17881d4e1416ff6cdd7be5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2016-12-20T01:23:00Z",
    "title_canon_sha256": "c961ffaa72545139e68e8d6ce983ee8528c972a26a917fbb0c1fbfca9532ad02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.06475",
    "kind": "arxiv",
    "version": 1
  }
}