Pith Number

pith:7P7RG6EJ

pith:2024:7P7RG6EJZTLCIYHY44JF27KNCA

not attested not anchored not stored refs pending

Fractal scaling and the aesthetics of trees

Jingyi Gao, Mitchell Newberry

arxiv:2402.13520 v1 · 2024-02-21 · physics.soc-ph · physics.pop-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{7P7RG6EJZTLCIYHY44JF27KNCA}

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	2026-07-05T07:47:33.655719Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fbff137889ccd62460f8e7125d7d4d102e5c20794b1d594c10049dcf3d722151

Aliases

arxiv: 2402.13520 · arxiv_version: 2402.13520v1 · doi: 10.48550/arxiv.2402.13520 · pith_short_12: 7P7RG6EJZTLC · pith_short_16: 7P7RG6EJZTLCIYHY · pith_short_8: 7P7RG6EJ

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/7P7RG6EJZTLCIYHY44JF27KNCA \
  | 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: fbff137889ccd62460f8e7125d7d4d102e5c20794b1d594c10049dcf3d722151

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d061c7e014adabbaa6fd7c856f32ac083b9c28bf9066263a12a8686ad877f8c1",
    "cross_cats_sorted": [
      "physics.pop-ph"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2024-02-21T04:09:25Z",
    "title_canon_sha256": "88b53f1764b49daf17edf1514600d49bfe1d23db483af28a72f5e8170aa2e190"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2402.13520",
    "kind": "arxiv",
    "version": 1
  }
}