Pith Number

pith:Q7TQBMLF

pith:2021:Q7TQBMLF6CVD6X2RDXD6M6W3D2

not attested not anchored not stored refs pending

The Study of Urban Residential's Public Space Activeness using Space-centric Approach

Benny Kai Kiat Ng, Bige Tuncer, Billy Pik Lik Lau, Chau Yuen, Keng Hua Chong

arxiv:2101.03725 v2 · 2021-01-11 · stat.AP · 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{Q7TQBMLF6CVD6X2RDXD6M6W3D2}

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	2026-07-05T02:06:22.263426Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87e700b165f0aa3f5f511dc7e67adb1eab714c906088cd598e3d6582c5ef1080

Aliases

arxiv: 2101.03725 · arxiv_version: 2101.03725v2 · doi: 10.48550/arxiv.2101.03725 · pith_short_12: Q7TQBMLF6CVD · pith_short_16: Q7TQBMLF6CVD6X2R · pith_short_8: Q7TQBMLF

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/Q7TQBMLF6CVD6X2RDXD6M6W3D2 \
  | 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: 87e700b165f0aa3f5f511dc7e67adb1eab714c906088cd598e3d6582c5ef1080

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7b6fd51893d18acf9d36d97a187cfc28295c5fd05917df6a97589f0f1722aa1",
    "cross_cats_sorted": [
      "cs.OH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2021-01-11T06:47:38Z",
    "title_canon_sha256": "1d14867dd6c772ead9d40899ee7f763f8f6a86f27198d71c4b04960e5ea016dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.03725",
    "kind": "arxiv",
    "version": 2
  }
}