Pith Number

pith:LLB6RBFN

pith:2023:LLB6RBFNNZK344QJ4BVYP6M3G3

not attested not anchored not stored refs pending

Systematic discrepancies in the delivery of political ads on Facebook and Instagram

Dominik B\"ar, Francesco Pierri, Gianmarco De Francisci Morales, Stefan Feuerriegel

arxiv:2310.10001 v3 · 2023-10-16 · 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{LLB6RBFNNZK344QJ4BVYP6M3G3}

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	2026-07-05T08:35:38.354004Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ac3e884ad6e55be7209e06b87f99b36d6ee09836a6354e26e2faca4222e2c9d

Aliases

arxiv: 2310.10001 · arxiv_version: 2310.10001v3 · doi: 10.48550/arxiv.2310.10001 · pith_short_12: LLB6RBFNNZK3 · pith_short_16: LLB6RBFNNZK344QJ · pith_short_8: LLB6RBFN

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/LLB6RBFNNZK344QJ4BVYP6M3G3 \
  | 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: 5ac3e884ad6e55be7209e06b87f99b36d6ee09836a6354e26e2faca4222e2c9d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3310731bf19a5843c0befbe5d1fef18ec37e42a2422e81e662584b1f6f0264b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2023-10-16T01:43:53Z",
    "title_canon_sha256": "d4710bc9a857774d7d371b51ddc2e9764312cedea009d43e8bb9ddbe12e2850a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2310.10001",
    "kind": "arxiv",
    "version": 3
  }
}