Pith Number

pith:M67ZUSGP

pith:2020:M67ZUSGPNQP25CBKR3GGPRHL6F

not attested not anchored not stored refs pending

Efficient Suspected Infected Crowds Detection Based on Spatio-Temporal Trajectories

Huajun He, Jie Bao, Rubin Wang, Ruiyuan Li, Tianrui Li, Yu Zheng

arxiv:2004.06653 v1 · 2020-04-11 · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M67ZUSGPNQP25CBKR3GGPRHL6F}

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	2026-07-05T00:54:54.330752Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67bf9a48cf6c1fae882a8ecc67c4ebf16efdfcfdf330084ff0281186f68b5a91

Aliases

arxiv: 2004.06653 · arxiv_version: 2004.06653v1 · doi: 10.48550/arxiv.2004.06653 · pith_short_12: M67ZUSGPNQP2 · pith_short_16: M67ZUSGPNQP25CBK · pith_short_8: M67ZUSGP

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/M67ZUSGPNQP25CBKR3GGPRHL6F \
  | 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: 67bf9a48cf6c1fae882a8ecc67c4ebf16efdfcfdf330084ff0281186f68b5a91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0b93ae4e33f70cba6fbfea7206d96beef61b1eaef49f9c97b7b4a5241b9edec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2020-04-11T08:35:54Z",
    "title_canon_sha256": "25e93fbbb49cb618be380081ab7c211fde0ea287c5c849f4682d4235f869d4c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.06653",
    "kind": "arxiv",
    "version": 1
  }
}