Pith Number

pith:6L5NIKL6

pith:2018:6L5NIKL6VOHYGGPSP6YVLXUJYA

not attested not anchored not stored refs pending

Spreading properties of a three-component reaction-diffusion model for the population of farmers and hunter-gatherers

Dongyuan Xiao, Mori Ryunosuke

arxiv:1812.04440 v2 · 2018-12-05 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6L5NIKL6VOHYGGPSP6YVLXUJYA}

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	2026-05-17T23:49:02.675164Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2fad4297eab8f8319f27fb155de89c014d06e530cbd3e0e35568f3d2f911ec6

Aliases

arxiv: 1812.04440 · arxiv_version: 1812.04440v2 · doi: 10.48550/arxiv.1812.04440 · pith_short_12: 6L5NIKL6VOHY · pith_short_16: 6L5NIKL6VOHYGGPS · pith_short_8: 6L5NIKL6

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/6L5NIKL6VOHYGGPSP6YVLXUJYA \
  | 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: f2fad4297eab8f8319f27fb155de89c014d06e530cbd3e0e35568f3d2f911ec6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88560d4fa973bdae088773bb7fb89468db712acf3aa4a913fd135fafee965e76",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-12-05T15:10:21Z",
    "title_canon_sha256": "b903883b717ae6a2258305c93428dfbd40aaf127ba488b19587aae055d8e9c78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.04440",
    "kind": "arxiv",
    "version": 2
  }
}