Pith Number

pith:7CLE5GGO

pith:2019:7CLE5GGOVR6YGSKMBLTGXQSYA4

not attested not anchored not stored refs pending

PFLD: A Practical Facial Landmark Detector

Haibin Ling, Jiawan Zhang, Jiayi Ma, Jinke Yu, Lin Ma, Siyuan Li, Wei Liu, Xiaojie Guo

arxiv:1902.10859 v2 · 2019-02-28 · cs.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7CLE5GGOVR6YGSKMBLTGXQSYA4}

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	2026-05-17T23:52:14.421441Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8964e98ceac7d83494c0ae66bc258072a9f770cbf285e71feebfae2e2e14ef7

Aliases

arxiv: 1902.10859 · arxiv_version: 1902.10859v2 · doi: 10.48550/arxiv.1902.10859 · pith_short_12: 7CLE5GGOVR6Y · pith_short_16: 7CLE5GGOVR6YGSKM · pith_short_8: 7CLE5GGO

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/7CLE5GGOVR6YGSKMBLTGXQSYA4 \
  | 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: f8964e98ceac7d83494c0ae66bc258072a9f770cbf285e71feebfae2e2e14ef7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ca302bd375abff6b06e1bd695d1d40140e810794dd51e2418493b0c69d2507c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-02-28T01:45:55Z",
    "title_canon_sha256": "66e77a439f0487eb9322321b6a578975d7177fd0836835b765b88e623e3fc8b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.10859",
    "kind": "arxiv",
    "version": 2
  }
}