Pith Number

pith:JSFU4KN3

pith:2020:JSFU4KN36ZKXP3SQSKQMIDLVAJ

not attested not anchored not stored refs pending

A Trustworthy Recruitment Process for Spatial Mobile Crowdsourcing in Large-scale Social IoT

Abdullah Khanfor, Aymen Hamrouni, Hakim Ghazzai, Yehia Massoud, Ye Yang

arxiv:2004.08751 v1 · 2020-04-19 · cs.SI · cs.SY · eess.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JSFU4KN36ZKXP3SQSKQMIDLVAJ}

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	2026-07-05T00:56:09.124266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c8b4e29bbf65577ee5092a0c40d750270cbb99e4620ae532707abe29e8dc59d

Aliases

arxiv: 2004.08751 · arxiv_version: 2004.08751v1 · doi: 10.48550/arxiv.2004.08751 · pith_short_12: JSFU4KN36ZKX · pith_short_16: JSFU4KN36ZKXP3SQ · pith_short_8: JSFU4KN3

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/JSFU4KN36ZKXP3SQSKQMIDLVAJ \
  | 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: 4c8b4e29bbf65577ee5092a0c40d750270cbb99e4620ae532707abe29e8dc59d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d05af053fe375d1352c59e3291fd5f82f61961e00d8a49e349b803852f53a7fe",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2020-04-19T02:35:35Z",
    "title_canon_sha256": "3fb3204f04b1c26aeceaec49c32e3f93968da34271e9350040e27dcc9e24b203"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.08751",
    "kind": "arxiv",
    "version": 1
  }
}