Pith Number

pith:CV4K4YFF

pith:2019:CV4K4YFF2RDQW6EB2322BY773D

not attested not anchored not stored refs pending

Leveraging Crowdsourced GPS Data for Road Extraction from Aerial Imagery

Chun Liu, Pengyu Che, Tao Sun, Yin Wang, Zonglin Di

arxiv:1905.01447 v1 · 2019-05-04 · 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{CV4K4YFF2RDQW6EB2322BY773D}

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	2026-05-17T23:46:58.518485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1578ae60a5d4470b7881d6f5a0e3ffd8d3d5c6693aa431f5e24e205c2913ecc0

Aliases

arxiv: 1905.01447 · arxiv_version: 1905.01447v1 · doi: 10.48550/arxiv.1905.01447 · pith_short_12: CV4K4YFF2RDQ · pith_short_16: CV4K4YFF2RDQW6EB · pith_short_8: CV4K4YFF

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/CV4K4YFF2RDQW6EB2322BY773D \
  | 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: 1578ae60a5d4470b7881d6f5a0e3ffd8d3d5c6693aa431f5e24e205c2913ecc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78a776a2d3c5786dba36e321140fb1ec69ad8028535648bd3657939de09373d7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2019-05-04T07:19:52Z",
    "title_canon_sha256": "6fbbc67f72f79b60f18691dbd6a65a01945f55ab05badaba7e18360347bd221d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.01447",
    "kind": "arxiv",
    "version": 1
  }
}