Pith Number

pith:F7DXCTBV

pith:2011:F7DXCTBVRX43GB6AVS33VXIIQJ

not attested not anchored not stored refs pending

A fast recursive coordinate bisection tree for neighbour search and gravity

Emanuel Gafton, Stephan Rosswog

arxiv:1108.0028 v1 · 2011-07-29 · 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{F7DXCTBVRX43GB6AVS33VXIIQJ}

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	2026-05-18T04:07:52.464874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fc7714c358df9b307c0acb7badd0882482cea225439df0ea1acb30071670337

Aliases

arxiv: 1108.0028 · arxiv_version: 1108.0028v1 · doi: 10.48550/arxiv.1108.0028 · pith_short_12: F7DXCTBVRX43 · pith_short_16: F7DXCTBVRX43GB6A · pith_short_8: F7DXCTBV

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/F7DXCTBVRX43GB6AVS33VXIIQJ \
  | 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: 2fc7714c358df9b307c0acb7badd0882482cea225439df0ea1acb30071670337

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ba106e6a6147bbacf949a44e66dfe5b6e2bda16c981a9734d82005fd4af1192",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-07-29T23:23:13Z",
    "title_canon_sha256": "7a6ac363f2685cc587fa20ac846f69ee38de6e9523c869e58cf3b4acfe2d383f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.0028",
    "kind": "arxiv",
    "version": 1
  }
}