Pith Number

pith:3VH5LWDW

pith:2009:3VH5LWDWTEMMQRWPXFN4BUTBOH

not attested not anchored not stored refs pending

Efficient computation of the quadrupole light deflection

Sergei A. Klioner, Sven Zschocke

arxiv:0907.4318 v3 · 2009-07-24 · astro-ph.EP · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3VH5LWDWTEMMQRWPXFN4BUTBOH}

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	2026-05-18T04:41:54.867218Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd4fd5d8769918c846cfb95bc0d26171dac9507a04c27075c11cb32233548c3f

Aliases

arxiv: 0907.4318 · arxiv_version: 0907.4318v3 · doi: 10.48550/arxiv.0907.4318 · pith_short_12: 3VH5LWDWTEMM · pith_short_16: 3VH5LWDWTEMMQRWP · pith_short_8: 3VH5LWDW

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/3VH5LWDWTEMMQRWPXFN4BUTBOH \
  | 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: dd4fd5d8769918c846cfb95bc0d26171dac9507a04c27075c11cb32233548c3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2ca019dcd2800be75428cdd33bd0bbcbcc9458a126bc7c53e571013068fc272",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-07-24T15:45:09Z",
    "title_canon_sha256": "217b9d5f750f2e92f3a4fbcfb608e5bbe9f1c40e4e33574ebc4eb8d210b10dbe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.4318",
    "kind": "arxiv",
    "version": 3
  }
}