Pith Number

pith:E3GVEDJX

pith:2019:E3GVEDJXTTYCLUR4NQJQVMLYSM

not attested not anchored not stored refs pending

OPIEC: An Open Information Extraction Corpus

Kiril Gashteovski, Rainer Gemulla, Samuel Broscheit, Sebastian Wanner, Sven Hertling

arxiv:1904.12324 v1 · 2019-04-28 · 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{E3GVEDJXTTYCLUR4NQJQVMLYSM}

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	2026-05-17T23:47:36.784680Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26cd520d379cf025d23c6c130ab178932b38d648cacd32fddbba81464dd3a1c2

Aliases

arxiv: 1904.12324 · arxiv_version: 1904.12324v1 · doi: 10.48550/arxiv.1904.12324 · pith_short_12: E3GVEDJXTTYC · pith_short_16: E3GVEDJXTTYCLUR4 · pith_short_8: E3GVEDJX

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/E3GVEDJXTTYCLUR4NQJQVMLYSM \
  | 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: 26cd520d379cf025d23c6c130ab178932b38d648cacd32fddbba81464dd3a1c2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa13dcc02530cc4f1579323cf2ffb68f86ad21eea474be03cd07f149d7004cd2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2019-04-28T13:57:54Z",
    "title_canon_sha256": "2f9d92558d64f17e3b2036c042a3dd60e4bd21274818e857bab9662bbfa20204"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.12324",
    "kind": "arxiv",
    "version": 1
  }
}