Pith Number

pith:CZQKPRVB

pith:2025:CZQKPRVBUUGFBMA7X7RJWY6OVU

not attested not anchored not stored refs pending

HARD: A Performance Portable Radiation Hydrodynamics Code based on FleCSI Framework

Alexander Strack, Andr\'es Yag\"ue L\'opez, Benjamin K. Bergen, Farhana Taiyebah, Hyun Lim, Julien Loiseau, Mammadbaghir Baghirzade, Shihab Shahriar Khan, Sudarshan Neopane, Yoonsoo Kim

arxiv:2509.08971 v1 · 2025-09-10 · physics.comp-ph · astro-ph.IM · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CZQKPRVBUUGFBMA7X7RJWY6OVU}

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	2026-05-20T00:05:33.357165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1660a7c6a1a50c50b01fbfe29b63cead0ab06e1aa44439c235694f42cae48921

Aliases

arxiv: 2509.08971 · arxiv_version: 2509.08971v1 · doi: 10.48550/arxiv.2509.08971 · pith_short_12: CZQKPRVBUUGF · pith_short_16: CZQKPRVBUUGFBMA7 · pith_short_8: CZQKPRVB

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/CZQKPRVBUUGFBMA7X7RJWY6OVU \
  | 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: 1660a7c6a1a50c50b01fbfe29b63cead0ab06e1aa44439c235694f42cae48921

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "137dc1e6d69ccfaeae4771bd760211c3e4e13306cfc2ecb17caf39ccba1e57bd",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "cs.DC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2025-09-10T20:04:44Z",
    "title_canon_sha256": "6ba20f504ca38db37fe5a988127d8f3fb9a8a183cde972078529dc88761a7e51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.08971",
    "kind": "arxiv",
    "version": 1
  }
}