Pith Number

pith:PJFIVNUN

pith:2019:PJFIVNUNGAJRTOEVOW4BBE4YO3

not attested not anchored not stored refs pending

The first order statistics of backscatter from the fractal branching vasculature

Kevin J. Parker

arxiv:1906.02603 v3 · 2019-06-06 · q-bio.QM · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PJFIVNUNGAJRTOEVOW4BBE4YO3}

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	2026-07-05T00:40:24.619452Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a4a8ab68d301319b89575b810939876c31b7402317666b043cf0f373eb6eb62

Aliases

arxiv: 1906.02603 · arxiv_version: 1906.02603v3 · doi: 10.48550/arxiv.1906.02603 · pith_short_12: PJFIVNUNGAJR · pith_short_16: PJFIVNUNGAJRTOEV · pith_short_8: PJFIVNUN

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/PJFIVNUNGAJRTOEVOW4BBE4YO3 \
  | 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: 7a4a8ab68d301319b89575b810939876c31b7402317666b043cf0f373eb6eb62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a39c4693acd8c5dd5137ea632d705742478322f9eae2a4ec43265612672d8431",
    "cross_cats_sorted": [
      "eess.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2019-06-06T14:15:12Z",
    "title_canon_sha256": "cba116b8ccd81600e58b9a11a3e54b9256e6aa7eb7635134ca898cd5664d4764"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.02603",
    "kind": "arxiv",
    "version": 3
  }
}