Pith Number

pith:FRRJQ7IQ

pith:2007:FRRJQ7IQTXYNZF5WV3ROLF3UP5

not attested not anchored not stored refs pending

On the generalized Jacobi equation

Volker Perlick

arxiv:0710.2667 v1 · 2007-10-14 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FRRJQ7IQTXYNZF5WV3ROLF3UP5}

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	2026-07-04T15:23:36.789440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c62987d109df0dc97b6aee2e597747f642235e40cf504a0cb9ca90594fd9c7f

Aliases

arxiv: 0710.2667 · arxiv_version: 0710.2667v1 · doi: 10.48550/arxiv.0710.2667 · pith_short_12: FRRJQ7IQTXYN · pith_short_16: FRRJQ7IQTXYNZF5W · pith_short_8: FRRJQ7IQ

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/FRRJQ7IQTXYNZF5WV3ROLF3UP5 \
  | 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: 2c62987d109df0dc97b6aee2e597747f642235e40cf504a0cb9ca90594fd9c7f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95675e923a783c0d521efd7abbf9977f2df8d0dce9a6c8a90d53001ce8097775",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2007-10-14T14:18:45Z",
    "title_canon_sha256": "ee16a5d82d7300198c824a1012d3f7bc04fa6353900d25ebafdf69652b477eee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0710.2667",
    "kind": "arxiv",
    "version": 1
  }
}