Pith Number

pith:KZYTJTRM

pith:2011:KZYTJTRMPU2ZWDVZIK4SJ5LDYP

not attested not anchored not stored refs pending

Battling the Internet Water Army: Detection of Hidden Paid Posters

Cheng Chen, Kui Wu, Venkatesh Srinivasan, Xudong Zhang

arxiv:1111.4297 v1 · 2011-11-18 · 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{KZYTJTRMPU2ZWDVZIK4SJ5LDYP}

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	2026-05-18T02:21:28.903293Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

567134ce2c7d359b0eb942b924f563c3ffb8a0ded6768b8acc1f82069540d523

Aliases

arxiv: 1111.4297 · arxiv_version: 1111.4297v1 · doi: 10.48550/arxiv.1111.4297 · pith_short_12: KZYTJTRMPU2Z · pith_short_16: KZYTJTRMPU2ZWDVZ · pith_short_8: KZYTJTRM

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/KZYTJTRMPU2ZWDVZIK4SJ5LDYP \
  | 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: 567134ce2c7d359b0eb942b924f563c3ffb8a0ded6768b8acc1f82069540d523

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "033ef01a661f493c7896640f4c200ca45575d9711fad47da56a167743fa0b8de",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2011-11-18T08:21:58Z",
    "title_canon_sha256": "fda8a0b4ac5642132ecf5cce75b6323de19b008077a9d2d29a4181075a9011d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.4297",
    "kind": "arxiv",
    "version": 1
  }
}