Pith Number

pith:4IA3P6FH

pith:2026:4IA3P6FHIAXSTWPOUQCE7DZNTN

not attested not anchored not stored refs pending

Detecting Pen-In-Air States from Video: A Proof-of-Concept Toward Complementary Handwriting Analysis

Binbin Xu, Frederic Puyjarinet, Gerard Dray, Lauren Sismeiro, Remy Plastre

arxiv:2606.02342 v1 · 2026-06-01 · 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{4IA3P6FHIAXSTWPOUQCE7DZNTN}

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	2026-06-02T03:04:56.613058Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e201b7f8a7402f29d9eea4044f8f2d9b6aa4b26bedcaf28ed4e87fc2a918d591

Aliases

arxiv: 2606.02342 · arxiv_version: 2606.02342v1 · doi: 10.48550/arxiv.2606.02342 · pith_short_12: 4IA3P6FHIAXS · pith_short_16: 4IA3P6FHIAXSTWPO · pith_short_8: 4IA3P6FH

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/4IA3P6FHIAXSTWPOUQCE7DZNTN \
  | 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: e201b7f8a7402f29d9eea4044f8f2d9b6aa4b26bedcaf28ed4e87fc2a918d591

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6aa859ba3f28aadd884664b1ddfee5d6b362882eda0256b69a95e52e065608a5",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-06-01T14:50:27Z",
    "title_canon_sha256": "1bfe24f8829fb1cf7399d05eb1bdca8732f125109144d789ea1bf1f11784d18c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.02342",
    "kind": "arxiv",
    "version": 1
  }
}