Pith Number

pith:ITPUYMQY

pith:2018:ITPUYMQYISD7WXK7ULFES7L22I

not attested not anchored not stored refs pending

Under the Shadow of Sunshine: Characterizing Spam Campaigns Abusing Phone Numbers Across Online Social Networks

Dhruv Kuchhal, Manish Gupta, Mustaque Ahamad, Payas Gupta, Ponnurangam Kumaraguru, Srishti Gupta

arxiv:1804.00451 v1 · 2018-04-02 · cs.CY · 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{ITPUYMQYISD7WXK7ULFES7L22I}

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	2026-05-18T00:19:37.126282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44df4c32184487fb5d5fa2ca497d7ad20c8226e6bbd01dfb33ebdf3b11f1faf3

Aliases

arxiv: 1804.00451 · arxiv_version: 1804.00451v1 · doi: 10.48550/arxiv.1804.00451 · pith_short_12: ITPUYMQYISD7 · pith_short_16: ITPUYMQYISD7WXK7 · pith_short_8: ITPUYMQY

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/ITPUYMQYISD7WXK7ULFES7L22I \
  | 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: 44df4c32184487fb5d5fa2ca497d7ad20c8226e6bbd01dfb33ebdf3b11f1faf3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "427e33be175e1470aaf05838b75a332aaefc51cbbd1e537486b6bfe528dac28e",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2018-04-02T11:20:14Z",
    "title_canon_sha256": "4e7cb5434ccd9687ac8faffc21e2a3acd705354cd65ca75408a1448e50bafa07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.00451",
    "kind": "arxiv",
    "version": 1
  }
}