Pith Number

pith:UHHZWXUH

pith:2022:UHHZWXUHY22L77HEF3K262O3NI

not attested not anchored not stored refs pending

Smartphone-based Hard-braking Event Detection at Scale for Road Safety Services

Bradley Green, Charles Armstrong, David Racz, Feng Guo, Julie Michelman, Kara Vaillancourt, Luyang Liu, Matt Barnes, Paul Eastham, Rishi Bal, Shawn O'Banion, Stefan Mellem

arxiv:2202.01934 v1 · 2022-02-04 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UHHZWXUHY22L77HEF3K262O3NI}

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	2026-07-05T03:54:06.934668Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1cf9b5e87c6b4bffce42ed5af69db6a2888ebef208e1d3194f59d0ee08a12eb

Aliases

arxiv: 2202.01934 · arxiv_version: 2202.01934v1 · doi: 10.48550/arxiv.2202.01934 · pith_short_12: UHHZWXUHY22L · pith_short_16: UHHZWXUHY22L77HE · pith_short_8: UHHZWXUH

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/UHHZWXUHY22L77HEF3K262O3NI \
  | 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: a1cf9b5e87c6b4bffce42ed5af69db6a2888ebef208e1d3194f59d0ee08a12eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cdcf4b722cf1acf0b9c752225acdda816b0cfd97c8865787ac4a4b0172a00921",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2022-02-04T01:30:32Z",
    "title_canon_sha256": "66b3bc47814a2664155f211a4181af9b681a1dc8808217b39f00c705007fb8f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.01934",
    "kind": "arxiv",
    "version": 1
  }
}