Pith Number

pith:7XG6X3PQ

pith:2018:7XG6X3PQEOUMMTJQUGU43TDK7X

not attested not anchored not stored refs pending

The two-type Richardson model in the half-plane

Christopher Hoffman, Daniel Ahlberg, Maria Deijfen

arxiv:1808.10796 v1 · 2018-08-31 · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7XG6X3PQEOUMMTJQUGU43TDK7X}

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	2026-05-18T00:06:44.539525Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdcdebedf023a8c64d30a1a9cdcc6afde4fc01622670a0777767eb3e1d2b82dc

Aliases

arxiv: 1808.10796 · arxiv_version: 1808.10796v1 · doi: 10.48550/arxiv.1808.10796 · pith_short_12: 7XG6X3PQEOUM · pith_short_16: 7XG6X3PQEOUMMTJQ · pith_short_8: 7XG6X3PQ

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/7XG6X3PQEOUMMTJQUGU43TDK7X \
  | 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: fdcdebedf023a8c64d30a1a9cdcc6afde4fc01622670a0777767eb3e1d2b82dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a232af54123104894303f4a1d568e36fbc5aea8a30c21e4cb710415d40fae203",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.PR",
    "submitted_at": "2018-08-31T15:01:23Z",
    "title_canon_sha256": "3cd3030b243caa112a10241a420abbbc05c5c7a8e4f25cf4fa3b8745d0109857"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.10796",
    "kind": "arxiv",
    "version": 1
  }
}