Pith Number

pith:CHBBPIOB

pith:2026:CHBBPIOBTXTN6E3WYCTJET3ZTN

not attested not anchored not stored refs pending

A WKB-based fixed-grid method for capturing trait concentration in a dispersal evolution model

Weijie Huang, Xinran Ruan

arxiv:2606.23093 v1 · 2026-06-22 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CHBBPIOBTXTN6E3WYCTJET3ZTN}

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	2026-06-23T03:14:09.629167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11c217a1c19de6df1376c0a6924f799b51b9f022b061bcf1036a1a4195ed544c

Aliases

arxiv: 2606.23093 · arxiv_version: 2606.23093v1 · doi: 10.48550/arxiv.2606.23093 · pith_short_12: CHBBPIOBTXTN · pith_short_16: CHBBPIOBTXTN6E3W · pith_short_8: CHBBPIOB

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/CHBBPIOBTXTN6E3WYCTJET3ZTN \
  | 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: 11c217a1c19de6df1376c0a6924f799b51b9f022b061bcf1036a1a4195ed544c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc93db4c2c5a1aa96edaf23f2c47737e486344d6fc50438cfade90b89096b35a",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-06-22T09:39:00Z",
    "title_canon_sha256": "029ac876506c060e9a755aae7df8399adbba3a0fb37cb023b6ea97a0b1e9e03a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.23093",
    "kind": "arxiv",
    "version": 1
  }
}