Pith Number

pith:JOHF3S3C

pith:2023:JOHF3S3CPPQWV3PAG6B4H2LFGT

not attested not anchored not stored refs pending

Phase transition in urban agglomeration and segregation

Michikazu Kobayashi, Taksu Cheon

arxiv:2307.11318 v1 · 2023-07-21 · 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{JOHF3S3CPPQWV3PAG6B4H2LFGT}

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	2026-07-05T06:33:25.984181Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b8e5dcb627be16aede03783c3e96534f2541f21174929a8bb0b9d6f9fafe03a

Aliases

arxiv: 2307.11318 · arxiv_version: 2307.11318v1 · doi: 10.48550/arxiv.2307.11318 · pith_short_12: JOHF3S3CPPQW · pith_short_16: JOHF3S3CPPQWV3PA · pith_short_8: JOHF3S3C

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/JOHF3S3CPPQWV3PAG6B4H2LFGT \
  | 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: 4b8e5dcb627be16aede03783c3e96534f2541f21174929a8bb0b9d6f9fafe03a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "157dd4e018e343f2eaaa739998ff34fccafdc1d408669ede4d5b9c36b81867b6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2023-07-21T03:00:21Z",
    "title_canon_sha256": "99744b02e302d465ef419f491bae03a45f29fbb14d93c41d477a0d2a4285828d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.11318",
    "kind": "arxiv",
    "version": 1
  }
}