Pith Number

pith:PPLEFG56

pith:2015:PPLEFG56NMAJKRU5HXEYO5OZ2K

not attested not anchored not stored refs pending

On the Piecewise Parabolic Method for Compressible Flow with Stellar Equations of State

M. P. Katz, M. Zingale

arxiv:1501.01923 v1 · 2015-01-08 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PPLEFG56NMAJKRU5HXEYO5OZ2K}

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	2026-05-18T01:41:13.746449Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bd6429bbe6b0095469d3dc98775d9d2b5334de7ade9503053ed5161332fa145

Aliases

arxiv: 1501.01923 · arxiv_version: 1501.01923v1 · doi: 10.48550/arxiv.1501.01923 · pith_short_12: PPLEFG56NMAJ · pith_short_16: PPLEFG56NMAJKRU5 · pith_short_8: PPLEFG56

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/PPLEFG56NMAJKRU5HXEYO5OZ2K \
  | 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: 7bd6429bbe6b0095469d3dc98775d9d2b5334de7ade9503053ed5161332fa145

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7505dedc719261e3319e8cd409ea58c54aab45423a08902173a4b33897015a94",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-01-08T18:51:06Z",
    "title_canon_sha256": "ab42b123594900bd94d9bce50a7ea9670e3f2cd1ca9166859faa4306ed467886"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.01923",
    "kind": "arxiv",
    "version": 1
  }
}