Pith Number

pith:RXQJEE5M

pith:2019:RXQJEE5MMA55INMO7AE65M7X7H

not attested not anchored not stored refs pending

The time step constraint in radiation hydrodynamics

Axel Brandenburg, Upasana Das

arxiv:1901.06385 v3 · 2019-01-18 · astro-ph.SR · astro-ph.HE · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RXQJEE5MMA55INMO7AE65M7X7H}

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	2026-07-05T00:25:54.345250Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8de09213ac603bd4358ef809eeb3f7f9d05f00f5b8be430ccc00cf14e8712513

Aliases

arxiv: 1901.06385 · arxiv_version: 1901.06385v3 · doi: 10.48550/arxiv.1901.06385 · pith_short_12: RXQJEE5MMA55 · pith_short_16: RXQJEE5MMA55INMO · pith_short_8: RXQJEE5M

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/RXQJEE5MMA55INMO7AE65M7X7H \
  | 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: 8de09213ac603bd4358ef809eeb3f7f9d05f00f5b8be430ccc00cf14e8712513

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4607e229e63651a3381f8df47154cc178cee67736cf0c808361159e42f875f0",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-01-18T13:07:47Z",
    "title_canon_sha256": "afbfc74043b86d82404430f898d74608e07ad0a22943a39a255548044a2fa5b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.06385",
    "kind": "arxiv",
    "version": 3
  }
}