Pith Number

pith:BKPLNUFC

pith:2019:BKPLNUFCXKCNHGYFJT3QNRJXH2

not attested not anchored not stored refs pending

pyro: a framework for hydrodynamics explorations and prototyping

Alice Harpole, Ian Hawke, Michael Zingale, Taher Chegini

arxiv:1902.08702 v1 · 2019-02-22 · astro-ph.IM · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BKPLNUFCXKCNHGYFJT3QNRJXH2}

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	2026-05-17T23:52:50.262335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a9eb6d0a2ba84d39b054cf706c5373e8f27b968ceaaae07abbd968f87c0d9a8

Aliases

arxiv: 1902.08702 · arxiv_version: 1902.08702v1 · doi: 10.48550/arxiv.1902.08702 · pith_short_12: BKPLNUFCXKCN · pith_short_16: BKPLNUFCXKCNHGYF · pith_short_8: BKPLNUFC

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/BKPLNUFCXKCNHGYFJT3QNRJXH2 \
  | 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: 0a9eb6d0a2ba84d39b054cf706c5373e8f27b968ceaaae07abbd968f87c0d9a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfa3491761214d201ac4a321f138ea039bcced456ba632785b2477367e415fcb",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-02-22T23:34:55Z",
    "title_canon_sha256": "93c61e638591b6f62997a4cc3d3682adcac33d2b5449d476e5c94960555a0050"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.08702",
    "kind": "arxiv",
    "version": 1
  }
}