Pith Number

pith:3SIA57GY

pith:2018:3SIA57GYJBETRHTDAECJVATQM7

not attested not anchored not stored refs pending

Expressway visibility estimation based on image entropy and piecewise stationary time series analysis

Anders Hedman, Guoqing Liu, Haibo Li, Kun Wang, Xiaogang Cheng

arxiv:1804.04601 v1 · 2018-04-08 · 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{3SIA57GYJBETRHTDAECJVATQM7}

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	2026-05-18T00:18:36.826213Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc900efcd84849389e6301049a827067e59f5f03d6e25f21889dd56692a8f939

Aliases

arxiv: 1804.04601 · arxiv_version: 1804.04601v1 · doi: 10.48550/arxiv.1804.04601 · pith_short_12: 3SIA57GYJBET · pith_short_16: 3SIA57GYJBETRHTD · pith_short_8: 3SIA57GY

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/3SIA57GYJBETRHTDAECJVATQM7 \
  | 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: dc900efcd84849389e6301049a827067e59f5f03d6e25f21889dd56692a8f939

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55eb1a6a70856a5c773f853dfaa1d3c18d7606ff6c2652c40bb724a9d4448ca3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-04-08T21:46:05Z",
    "title_canon_sha256": "01e1bd460253caaf0706127ad0e1cf8eec5340b338a29baecb36f65568cd2861"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.04601",
    "kind": "arxiv",
    "version": 1
  }
}