Pith Number

pith:GV4FA2GH

pith:2018:GV4FA2GHHNUHB2K26VOMOF25RQ

not attested not anchored not stored refs pending

Volunteers in the Smart City: Comparison of Contribution Strategies on Human-Centered Measures

Catholijn M. Jonker, Ivana Dusparic, Rhythima Shinde, Stefano Bennati

arxiv:1805.09090 v1 · 2018-05-23 · cs.MA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GV4FA2GHHNUHB2K26VOMOF25RQ}

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	2026-05-18T00:15:08.584266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

35785068c73b6870e95af55cc7175d8c084b41c9c29da63fe28c834167f60450

Aliases

arxiv: 1805.09090 · arxiv_version: 1805.09090v1 · doi: 10.48550/arxiv.1805.09090 · pith_short_12: GV4FA2GHHNUH · pith_short_16: GV4FA2GHHNUHB2K2 · pith_short_8: GV4FA2GH

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/GV4FA2GHHNUHB2K26VOMOF25RQ \
  | 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: 35785068c73b6870e95af55cc7175d8c084b41c9c29da63fe28c834167f60450

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebfb10299e8cb4b45e62056bbcd098103cb8e2e8072153a6e264086b391300ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MA",
    "submitted_at": "2018-05-23T12:30:23Z",
    "title_canon_sha256": "da1671d472b60c561c0b9b92f1d5037096796632524deaed8ddd5f9a63d4a23f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.09090",
    "kind": "arxiv",
    "version": 1
  }
}