Pith Number

pith:O5QDMGEN

pith:2018:O5QDMGENY5IV4AZULZJJTDFTJC

not attested not anchored not stored refs pending

CrowdExpress: A Probabilistic Framework for On-Time Crowdsourced Package Deliveries

Bin Guo, Chao Chen, Daqing Zhang, Sen Yang, Weichen Liu, Yasha Wang

arxiv:1809.02897 v1 · 2018-09-08 · cs.OH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O5QDMGENY5IV4AZULZJJTDFTJC}

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	2026-05-18T00:06:10.743550Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

776036188dc7515e03345e52998cb348881dc1ded9b11f0a167cc4619e1f3d82

Aliases

arxiv: 1809.02897 · arxiv_version: 1809.02897v1 · doi: 10.48550/arxiv.1809.02897 · pith_short_12: O5QDMGENY5IV · pith_short_16: O5QDMGENY5IV4AZU · pith_short_8: O5QDMGEN

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/O5QDMGENY5IV4AZULZJJTDFTJC \
  | 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: 776036188dc7515e03345e52998cb348881dc1ded9b11f0a167cc4619e1f3d82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "934ba4a96c46d62a0f1448ff2c825a87bdb9def85e5fb104b63e796291199926",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.OH",
    "submitted_at": "2018-09-08T23:48:47Z",
    "title_canon_sha256": "5aa03914006d85ae3e7e8a7f0af1d915fd846c40d08580d098ac6a340b00baee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.02897",
    "kind": "arxiv",
    "version": 1
  }
}