Pith Number

pith:HWUZY4KB

pith:2019:HWUZY4KBUDEF55YCOGKPALREOM

not attested not anchored not stored refs pending

An Empirical Study of the Application of Machine Learning and Keyword Terms Methodologies to Privilege-Document Review Projects in Legal Matters

Haozhen Zhao, Jianping Zhang, Nathaniel Huber-Fliflet, Peter Gronvall, Robert Keeling, Robert Neary

arxiv:1904.01722 v1 · 2019-04-03 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HWUZY4KBUDEF55YCOGKPALREOM}

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	2026-05-17T23:49:30.006819Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3da99c7141a0c85ef7027194f02e247309466c371d1eabe23ddee466393e2598

Aliases

arxiv: 1904.01722 · arxiv_version: 1904.01722v1 · doi: 10.48550/arxiv.1904.01722 · pith_short_12: HWUZY4KBUDEF · pith_short_16: HWUZY4KBUDEF55YC · pith_short_8: HWUZY4KB

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/HWUZY4KBUDEF55YCOGKPALREOM \
  | 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: 3da99c7141a0c85ef7027194f02e247309466c371d1eabe23ddee466393e2598

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90d82aebb8d99b1e4b07fd9b864273d08ae87bd7733989af530d02288d6b2c4a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2019-04-03T00:59:37Z",
    "title_canon_sha256": "9a2a5ebe9dbdfb2012ed4ece983d47450642cffecef5334ebff967c018e64d87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01722",
    "kind": "arxiv",
    "version": 1
  }
}