Pith Number

pith:MX7U3I6D

pith:2016:MX7U3I6D62VZ3JFMS6AKAP4X2K

not attested not anchored not stored refs pending

Detecting "Smart" Spammers On Social Network: A Topic Model Approach

Jianwei Lu, Laurent Itti, Linqing Liu, Renxian Zhang, Yao Lu, Ye Luo

arxiv:1604.08504 v2 · 2016-04-28 · cs.CL · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MX7U3I6D62VZ3JFMS6AKAP4X2K}

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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	2026-05-18T01:04:53.623326Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65ff4da3c3f6ab9da4ac9780a03f97d2bbbd4e31f849aa2aed5cb6eb9a8e6540

Aliases

arxiv: 1604.08504 · arxiv_version: 1604.08504v2 · doi: 10.48550/arxiv.1604.08504 · pith_short_12: MX7U3I6D62VZ · pith_short_16: MX7U3I6D62VZ3JFM · pith_short_8: MX7U3I6D

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/MX7U3I6D62VZ3JFMS6AKAP4X2K \
  | 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: 65ff4da3c3f6ab9da4ac9780a03f97d2bbbd4e31f849aa2aed5cb6eb9a8e6540

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0ac381057bb60c5fc04687e3f46bcdd15c97423a05bf8fdd23999f1d13d3ff0",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2016-04-28T16:36:35Z",
    "title_canon_sha256": "ffad610e244210cd99c3a16be4466fb4741a720e7ae63ba802af3b400dac0b72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.08504",
    "kind": "arxiv",
    "version": 2
  }
}