Pith Number

pith:IUPN3EPK

pith:2016:IUPN3EPKVHTC7HQ4EF2N44F5Z4

not attested not anchored not stored refs pending

Ex Machina: Personal Attacks Seen at Scale

Ellery Wulczyn, Lucas Dixon, Nithum Thain

arxiv:1610.08914 v2 · 2016-10-27 · 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{IUPN3EPKVHTC7HQ4EF2N44F5Z4}

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	2026-05-18T00:49:58.122437Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

451edd91eaa9e62f9e1c2174de70bdcf1a16674aa25c278e3d21e13ab6b03505

Aliases

arxiv: 1610.08914 · arxiv_version: 1610.08914v2 · doi: 10.48550/arxiv.1610.08914 · pith_short_12: IUPN3EPKVHTC · pith_short_16: IUPN3EPKVHTC7HQ4 · pith_short_8: IUPN3EPK

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/IUPN3EPKVHTC7HQ4EF2N44F5Z4 \
  | 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: 451edd91eaa9e62f9e1c2174de70bdcf1a16674aa25c278e3d21e13ab6b03505

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3da978f8af135648f0b9ec9a14abaeee4dbc39ecec707b227961a7f29f846767",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2016-10-27T18:18:18Z",
    "title_canon_sha256": "89fd5885b1ac67930964e490f9069d0ab9bd6b957238d57522b83fb3e44efac1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.08914",
    "kind": "arxiv",
    "version": 2
  }
}