Pith Number

pith:PSHEMANH

pith:2026:PSHEMANHZLGRYRVFXSPUY4YE7R

not attested not anchored not stored refs pending

A semi-Lagrangian method for the polyatomic ESBGK model

Axel Klar, Erik Arlemark, Giovanni Samaey, Klaas Willems

arxiv:2606.21191 v1 · 2026-06-19 · 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{PSHEMANHZLGRYRVFXSPUY4YE7R}

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	2026-06-23T01:12:32.943029Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c8e4601a7cacd1c46a5bc9f4c7304fc585ca1fde6ba768ac493a1b83c4b7390

Aliases

arxiv: 2606.21191 · arxiv_version: 2606.21191v1 · doi: 10.48550/arxiv.2606.21191 · pith_short_12: PSHEMANHZLGR · pith_short_16: PSHEMANHZLGRYRVF · pith_short_8: PSHEMANH

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/PSHEMANHZLGRYRVFXSPUY4YE7R \
  | 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: 7c8e4601a7cacd1c46a5bc9f4c7304fc585ca1fde6ba768ac493a1b83c4b7390

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ccfbc08281f89f16f9fb12d1e62310cea5c28ea0f6eb48d8ffae0bc0c78b986",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-06-19T08:02:59Z",
    "title_canon_sha256": "5afb79a6fda4b3632595f37ebd6f11e47d93561f941f17992fe5c7159c323612"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.21191",
    "kind": "arxiv",
    "version": 1
  }
}