Pith Number

pith:K5SFYXL7

pith:2008:K5SFYXL76SQUGM2BG7IPBZOXXB

not attested not anchored not stored refs pending

On the applicability of constrained symplectic integrators in general relativity

J. Frauendiener

arxiv:0805.4465 v2 · 2008-05-29 · gr-qc · cs.NA · 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{K5SFYXL76SQUGM2BG7IPBZOXXB}

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	2026-06-03T22:06:06.531729Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57645c5d7ff4a143334137d0f0e5d7b840f2a7b65ec67dd9b52c2c0453510f27

Aliases

arxiv: 0805.4465 · arxiv_version: 0805.4465v2 · doi: 10.48550/arxiv.0805.4465 · pith_short_12: K5SFYXL76SQU · pith_short_16: K5SFYXL76SQUGM2B · pith_short_8: K5SFYXL7

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/K5SFYXL76SQUGM2BG7IPBZOXXB \
  | 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: 57645c5d7ff4a143334137d0f0e5d7b840f2a7b65ec67dd9b52c2c0453510f27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88e2e874310427f76447bb8157f9390698d33e63076d0ab1b11363698a057cba",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2008-05-29T03:34:34Z",
    "title_canon_sha256": "86ab1888f0c06d90cf012bec2e69e0d85978381e069472bdd338cb0beac596e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0805.4465",
    "kind": "arxiv",
    "version": 2
  }
}