Pith Number

pith:UK4IDNW5

pith:2014:UK4IDNW5TVPTSDUWMTV2GGJS37

not attested not anchored not stored refs pending

IAS15: A fast, adaptive, high-order integrator for gravitational dynamics, accurate to machine precision over a billion orbits

David S. Spiegel, Hanno Rein

arxiv:1409.4779 v2 · 2014-09-16 · astro-ph.EP · astro-ph.IM · astro-ph.SR · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UK4IDNW5TVPTSDUWMTV2GGJS37}

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.

Cited by

1 paper in Pith

Formation of stable exoplanetary systems around pulsars by capture: An exercise in computational classical mechanics

Receipt and verification

First computed	2026-05-18T01:42:01.957547Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2b881b6dd9d5f390e9664eba31932dff37ac3fd0646ab8099e319732ef4b203

Aliases

arxiv: 1409.4779 · arxiv_version: 1409.4779v2 · doi: 10.48550/arxiv.1409.4779 · pith_short_12: UK4IDNW5TVPT · pith_short_16: UK4IDNW5TVPTSDUW · pith_short_8: UK4IDNW5

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/UK4IDNW5TVPTSDUWMTV2GGJS37 \
  | 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: a2b881b6dd9d5f390e9664eba31932dff37ac3fd0646ab8099e319732ef4b203

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "adab8240a804295d172141cf9be1a1de629aef99927de187afdec28b937b6339",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "astro-ph.SR",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2014-09-16T20:00:14Z",
    "title_canon_sha256": "1c1661c5b95a112c1ad90b5282a782cbb13db53322c1833e09e41b5ca33173f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.4779",
    "kind": "arxiv",
    "version": 2
  }
}