Pith Number

pith:OL2V4ZCE

pith:2020:OL2V4ZCEHICOYEL77YZ2C4LEQD

not attested not anchored not stored refs pending

Automatically Identifying Political Ads on Facebook: Towards Understanding of Manipulation via User Targeting

Or Levi, Pedram Hosseini, Sardar Hamidian

arxiv:2004.09745 v1 · 2020-04-21 · 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{OL2V4ZCEHICOYEL77YZ2C4LEQD}

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	2026-07-05T00:56:53.269754Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72f55e64443a04ec117ffe33a1716480d2e593ce99acfb88781ffb0605980175

Aliases

arxiv: 2004.09745 · arxiv_version: 2004.09745v1 · doi: 10.48550/arxiv.2004.09745 · pith_short_12: OL2V4ZCEHICO · pith_short_16: OL2V4ZCEHICOYEL7 · pith_short_8: OL2V4ZCE

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/OL2V4ZCEHICOYEL77YZ2C4LEQD \
  | 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: 72f55e64443a04ec117ffe33a1716480d2e593ce99acfb88781ffb0605980175

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "527d33066cadf4832e5ba074bbbfdcab1b1493d493a4c4d6bef40a91bb0e106f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2020-04-21T04:15:03Z",
    "title_canon_sha256": "d4c35d6ff0cb0127d6325ae2aba8f75937a484cbc46ef3ffb08653949c868fbc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.09745",
    "kind": "arxiv",
    "version": 1
  }
}