Pith Number

pith:UDEE4R4F

pith:2015:UDEE4R4FNV7O5H5Q4GO2YJBNWD

not attested not anchored not stored refs pending

Does "Like" Really Mean Like? A Study of the Facebook Fake Like Phenomenon and an Efficient Countermeasure

Mingyuan Xia, Xinye Lin, Xue Liu

arxiv:1503.05414 v3 · 2015-03-18 · 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{UDEE4R4FNV7O5H5Q4GO2YJBNWD}

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	2026-05-18T02:19:52.184804Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0c84e47856d7eee9fb0e19dac242db0ef7acc6892768dc9b3b523050a8f4e60

Aliases

arxiv: 1503.05414 · arxiv_version: 1503.05414v3 · doi: 10.48550/arxiv.1503.05414 · pith_short_12: UDEE4R4FNV7O · pith_short_16: UDEE4R4FNV7O5H5Q · pith_short_8: UDEE4R4F

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/UDEE4R4FNV7O5H5Q4GO2YJBNWD \
  | 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: a0c84e47856d7eee9fb0e19dac242db0ef7acc6892768dc9b3b523050a8f4e60

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2fb4cfe06d038e45f8e3578aa44ca0978acf33134ddbb78a41b1d863cb974047",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2015-03-18T13:58:47Z",
    "title_canon_sha256": "e4103c6dc1f6e20eeb00a58a7631f58db51c7a3af8450911dce91b37e00261e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.05414",
    "kind": "arxiv",
    "version": 3
  }
}