Pith Number

pith:2OCPDC6G

pith:2017:2OCPDC6GHRHJUIYHZULCNTE6LI

not attested not anchored not stored refs pending

Tree-based solvers for adaptive mesh refinement code FLASH - I: gravity and optical depths

Anthony P. Whitworth, Franti\v{s}ek Dinnbier, Richard W\"unsch, Stefanie Walch

arxiv:1708.06142 v2 · 2017-08-21 · astro-ph.IM · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2OCPDC6GHRHJUIYHZULCNTE6LI}

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	2026-05-18T00:25:17.565843Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d384f18bc63c4e9a2307cd1626cc9e5a2a43b4dfafa1f1144679703ed236d7c0

Aliases

arxiv: 1708.06142 · arxiv_version: 1708.06142v2 · doi: 10.48550/arxiv.1708.06142 · pith_short_12: 2OCPDC6GHRHJ · pith_short_16: 2OCPDC6GHRHJUIYH · pith_short_8: 2OCPDC6G

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/2OCPDC6GHRHJUIYHZULCNTE6LI \
  | 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: d384f18bc63c4e9a2307cd1626cc9e5a2a43b4dfafa1f1144679703ed236d7c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1871053d9fbdf0575f484e3433adc10050606aba9b8b7222390e031fd92bc785",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2017-08-21T10:25:22Z",
    "title_canon_sha256": "ef5d02a10e432025b10d114a9de76e3f434566a918129f1a324525e05a98db38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.06142",
    "kind": "arxiv",
    "version": 2
  }
}