Pith Number

pith:4VB7Y4YG

pith:2019:4VB7Y4YG4Z7BLSJCSZY6TJ73H5

not attested not anchored not stored refs pending

Directional PointNet: 3D Environmental Classification for Wearable Robotics

Chenglong Fu, Jing Wang, Kuangen Zhang

arxiv:1903.06846 v2 · 2019-03-16 · 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{4VB7Y4YG4Z7BLSJCSZY6TJ73H5}

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	2026-05-17T23:50:44.413048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e543fc7306e67e15c9229671e9a7fb3f73165923f65da4e83468d8e7b8ca14ae

Aliases

arxiv: 1903.06846 · arxiv_version: 1903.06846v2 · doi: 10.48550/arxiv.1903.06846 · pith_short_12: 4VB7Y4YG4Z7B · pith_short_16: 4VB7Y4YG4Z7BLSJC · pith_short_8: 4VB7Y4YG

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/4VB7Y4YG4Z7BLSJCSZY6TJ73H5 \
  | 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: e543fc7306e67e15c9229671e9a7fb3f73165923f65da4e83468d8e7b8ca14ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e74bffc1f5b85d7787b181a629e5840aa6812e1bae85c0e35397d52eaba72266",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-03-16T00:14:20Z",
    "title_canon_sha256": "0795241c4b729aa6779a5a1cd878895de796ca129c8aa4d8cc9473c32f4c319c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.06846",
    "kind": "arxiv",
    "version": 2
  }
}