Pith Number

pith:YZI5SJ2I

pith:2019:YZI5SJ2IQDTWFDFHAQHH4GWUJU

not attested not anchored not stored refs pending

Solving Hard Coreference Problems

Daniel Khashabi, Dan Roth, Haoruo Peng

arxiv:1907.05524 v1 · 2019-07-11 · 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{YZI5SJ2IQDTWFDFHAQHH4GWUJU}

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	2026-05-17T23:40:48.087198Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c651d9274880e7628ca7040e7e1ad44d3881d6dba8ea76be5dbadfbc9cb8395f

Aliases

arxiv: 1907.05524 · arxiv_version: 1907.05524v1 · doi: 10.48550/arxiv.1907.05524 · pith_short_12: YZI5SJ2IQDTW · pith_short_16: YZI5SJ2IQDTWFDFH · pith_short_8: YZI5SJ2I

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/YZI5SJ2IQDTWFDFHAQHH4GWUJU \
  | 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: c651d9274880e7628ca7040e7e1ad44d3881d6dba8ea76be5dbadfbc9cb8395f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b1d522a6604cb4a73c53ce04fe074febe8e525092b358f5136ed7d66105127c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-07-11T23:40:56Z",
    "title_canon_sha256": "f24e37656f1f542cdbb5c23326618244bd9860e2cade0b0af683b6894cd290d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.05524",
    "kind": "arxiv",
    "version": 1
  }
}