Pith Number

pith:CFVBWKAI

pith:2019:CFVBWKAIG2ERQVDXXZC2762IFA

not attested not anchored not stored refs pending

A Critical Analysis of Biased Parsers in Unsupervised Parsing

Chris Dyer, G\'abor Melis, Phil Blunsom

arxiv:1909.09428 v1 · 2019-09-20 · cs.CL · cs.LG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CFVBWKAIG2ERQVDXXZC2762IFA}

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	2026-07-05T00:05:59.571820Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

116a1b28083689185477be45affb482804a4d10bd1e3a524fd77a4af9a7cfa69

Aliases

arxiv: 1909.09428 · arxiv_version: 1909.09428v1 · doi: 10.48550/arxiv.1909.09428 · pith_short_12: CFVBWKAIG2ER · pith_short_16: CFVBWKAIG2ERQVDX · pith_short_8: CFVBWKAI

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/CFVBWKAIG2ERQVDXXZC2762IFA \
  | 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: 116a1b28083689185477be45affb482804a4d10bd1e3a524fd77a4af9a7cfa69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "138791e2146e01c906f1148354b575154e13c122e796bea2c614a846b4ad1d0e",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-09-20T11:09:52Z",
    "title_canon_sha256": "c31e1e0fe252c029d384a52707ae157790bff1cdf04f13b09a5a7b681030575e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.09428",
    "kind": "arxiv",
    "version": 1
  }
}