Pith Number

pith:SNUUPM7L

pith:2013:SNUUPM7LXBU7DPG3OPXDXM4KJG

not attested not anchored not stored refs pending

Is Somebody Watching Your Facebook Newsfeed?

Chun-Hsiung Tseng, Kuan-Ta Chen, Man-Ju Chou, Ming-Hung Wang, Shan-Hung Wu, Yuh-Jye Lee

arxiv:1308.5168 v1 · 2013-08-23 · 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{SNUUPM7LXBU7DPG3OPXDXM4KJG}

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	2026-05-18T03:15:07.923972Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

936947b3ebb869f1bcdb73ee3bb38a49b88b56de1ed2a8528792a8fced47121a

Aliases

arxiv: 1308.5168 · arxiv_version: 1308.5168v1 · doi: 10.48550/arxiv.1308.5168 · pith_short_12: SNUUPM7LXBU7 · pith_short_16: SNUUPM7LXBU7DPG3 · pith_short_8: SNUUPM7L

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/SNUUPM7LXBU7DPG3OPXDXM4KJG \
  | 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: 936947b3ebb869f1bcdb73ee3bb38a49b88b56de1ed2a8528792a8fced47121a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd1794d7803e21c426978e0297209710792a3f05dfad0fd096f54fb7c68ca051",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2013-08-23T16:14:15Z",
    "title_canon_sha256": "27b5e57057f992426a5bd7c7d316b449df504bf5e1b27cc3e4f9721a8a186d2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.5168",
    "kind": "arxiv",
    "version": 1
  }
}