Pith Number

pith:M6EHJDRK

pith:2018:M6EHJDRKI52LMBMG7VLRS7P6ZW

not attested not anchored not stored refs pending

Measuring Expert Performance at Manually Classifying Domain Entities under Upper Ontology Classes

James Malone, Nicolas Matentzoglu, Phillip Lord, Robert Stevens

arxiv:1810.05093 v1 · 2018-10-11 · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M6EHJDRKI52LMBMG7VLRS7P6ZW}

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	2026-05-18T00:03:34.889413Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6788748e2a4774b60586fd57197dfecda67213363289d36a4b041a9d0f593b5b

Aliases

arxiv: 1810.05093 · arxiv_version: 1810.05093v1 · doi: 10.48550/arxiv.1810.05093 · pith_short_12: M6EHJDRKI52L · pith_short_16: M6EHJDRKI52LMBMG · pith_short_8: M6EHJDRK

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/M6EHJDRKI52LMBMG7VLRS7P6ZW \
  | 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: 6788748e2a4774b60586fd57197dfecda67213363289d36a4b041a9d0f593b5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ed66879a6fea4ce648603126aa2cf520f837aeab097be673f8a8497198ddd94",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2018-10-11T15:45:05Z",
    "title_canon_sha256": "1b0414c719219248798d4f45b1b822e878994373c8a57d194edf2386a1cb8c74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.05093",
    "kind": "arxiv",
    "version": 1
  }
}