Pith Number

pith:M7C5I4GG

pith:2018:M7C5I4GGMQAXX5B7HFFB5XSFCL

not attested not anchored not stored refs pending

Gravity model explained by the radiation model on a population landscape

Hang-Hyun Jo, Inho Hong, Woo-Sung Jung

arxiv:1803.09067 v2 · 2018-03-24 · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M7C5I4GGMQAXX5B7HFFB5XSFCL}

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	2026-05-17T23:44:00.220486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67c5d470c664017bf43f394a1ede4512dce12d7d3ef692e6ef97c23e934b4d3b

Aliases

arxiv: 1803.09067 · arxiv_version: 1803.09067v2 · doi: 10.48550/arxiv.1803.09067 · pith_short_12: M7C5I4GGMQAX · pith_short_16: M7C5I4GGMQAXX5B7 · pith_short_8: M7C5I4GG

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/M7C5I4GGMQAXX5B7HFFB5XSFCL \
  | 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: 67c5d470c664017bf43f394a1ede4512dce12d7d3ef692e6ef97c23e934b4d3b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f3daceb101c3d277d773d73d3756c4d671723a3e117b377c729fba7e9e40dee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2018-03-24T06:42:48Z",
    "title_canon_sha256": "4e6a8f0b919ec8867d5730de56cdd19842efeb09757e7b19667f50f0e11b566c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.09067",
    "kind": "arxiv",
    "version": 2
  }
}