Pith Number

pith:APTRV3OQ

pith:2018:APTRV3OQTR4GGZC3EUPTILBWHY

not attested not anchored not stored refs pending

Spatial social networks identified from urban group travel

Daqing Li, Haodong Yin, Hao Liu, Huijun Sun, Jianjun Wu, Kangli Zhu, Xin Yang, Yunchao Qu, Ziyou Gao

arxiv:1806.03834 v1 · 2018-06-11 · physics.soc-ph · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{APTRV3OQTR4GGZC3EUPTILBWHY}

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	2026-05-18T00:13:22.532882Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03e71aedd09c7863645b251f342c363e25e41219189e5e756ea9bb3534b3c538

Aliases

arxiv: 1806.03834 · arxiv_version: 1806.03834v1 · doi: 10.48550/arxiv.1806.03834 · pith_short_12: APTRV3OQTR4G · pith_short_16: APTRV3OQTR4GGZC3 · pith_short_8: APTRV3OQ

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/APTRV3OQTR4GGZC3EUPTILBWHY \
  | 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: 03e71aedd09c7863645b251f342c363e25e41219189e5e756ea9bb3534b3c538

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ce5353bbf97be27b334d130b746e32a8c5967fd81faacca8086c64f658a0997",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2018-06-11T07:03:01Z",
    "title_canon_sha256": "7e3df0ace126809c42fa70ef9190dbf2d8a3482f4ca63d2709bfb4e6fe2cb68d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.03834",
    "kind": "arxiv",
    "version": 1
  }
}