Pith Number

pith:2HYKLNDF

pith:2013:2HYKLNDFEYCE4FM6DQHHIL6W5R

not attested not anchored not stored refs pending

SybilFence: Improving Social-Graph-Based Sybil Defenses with User Negative Feedback

Qiang Cao, Xiaowei Yang

arxiv:1304.3819 v1 · 2013-04-13 · cs.SI · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2HYKLNDFEYCE4FM6DQHHIL6W5R}

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	2026-05-18T03:28:04.252664Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1f0a5b46526044e159e1c0e742fd6ec6f73eeaa4bdd35245da33f6e41edb464

Aliases

arxiv: 1304.3819 · arxiv_version: 1304.3819v1 · doi: 10.48550/arxiv.1304.3819 · pith_short_12: 2HYKLNDFEYCE · pith_short_16: 2HYKLNDFEYCE4FM6 · pith_short_8: 2HYKLNDF

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/2HYKLNDFEYCE4FM6DQHHIL6W5R \
  | 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: d1f0a5b46526044e159e1c0e742fd6ec6f73eeaa4bdd35245da33f6e41edb464

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b4e8f2af0e7b4087b1acc8500ee9bf1d6a6ab74de0408580ec82ed83dd01412",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2013-04-13T16:35:02Z",
    "title_canon_sha256": "b07ceedf606076281590887eaf20323837a95801d6755eaf6d5c23e33d7f8159"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.3819",
    "kind": "arxiv",
    "version": 1
  }
}