Pith Number

pith:BLJJO5IA

pith:2017:BLJJO5IAMERKJGEVZMEAVP36JC

not attested not anchored not stored refs pending

Distinguishing Posed and Spontaneous Smiles by Facial Dynamics

Bappaditya Mandal, David Lee, Nizar Ouarti

arxiv:1701.01573 v3 · 2017-01-06 · 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{BLJJO5IAMERKJGEVZMEAVP36JC}

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	2026-05-18T00:50:35.181668Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ad29775006122a49895cb080abf7e4899bbf6a10cbd7a30a6a383bc2d8db9e4

Aliases

arxiv: 1701.01573 · arxiv_version: 1701.01573v3 · doi: 10.48550/arxiv.1701.01573 · pith_short_12: BLJJO5IAMERK · pith_short_16: BLJJO5IAMERKJGEV · pith_short_8: BLJJO5IA

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/BLJJO5IAMERKJGEVZMEAVP36JC \
  | 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: 0ad29775006122a49895cb080abf7e4899bbf6a10cbd7a30a6a383bc2d8db9e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b27d7b51a4294473f8563a6625d76ed66b146cb94af1647790812a3619c41ce",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-01-06T08:41:01Z",
    "title_canon_sha256": "d1f9baed20db8825fed5bcd8cd5ae18d23dfde22dcdcb58be9628aeccc42c556"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.01573",
    "kind": "arxiv",
    "version": 3
  }
}