Pith Number

pith:J3UMPQHG

pith:2019:J3UMPQHGOJ3CYASBJM6VF4WNWO

not attested not anchored not stored refs pending

Forward Vehicle Collision Warning Based on Quick Camera Calibration

Qi Wang, Yuan Yuan, Yuwei Lu

arxiv:1904.12642 v1 · 2019-04-22 · cs.CV · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J3UMPQHGOJ3CYASBJM6VF4WNWO}

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	2026-05-17T23:47:34.480686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ee8c7c0e672762c02414b3d52f2cdb3bc9b293ea0ebce283830b96da3018235

Aliases

arxiv: 1904.12642 · arxiv_version: 1904.12642v1 · doi: 10.48550/arxiv.1904.12642 · pith_short_12: J3UMPQHGOJ3C · pith_short_16: J3UMPQHGOJ3CYASB · pith_short_8: J3UMPQHG

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/J3UMPQHGOJ3CYASBJM6VF4WNWO \
  | 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: 4ee8c7c0e672762c02414b3d52f2cdb3bc9b293ea0ebce283830b96da3018235

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d69b8e77adaa41e7f9fb8535c8cc8699531d39ed1ba169d16fb9b7a9d3967d69",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-04-22T07:39:32Z",
    "title_canon_sha256": "b3c453bbbbfcb726cf352b6da6266edeea95d49de1d457dc70ad56a23251b384"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.12642",
    "kind": "arxiv",
    "version": 1
  }
}