Pith Number

pith:Z45SAOC5

pith:2011:Z45SAOC5QZVC3WWLDBIHKIP25J

not attested not anchored not stored refs pending

The HARPS search for southern extra-solar planets XXXII. Only 4 planets in the Gl~581 system

C. Lovis, D. Queloz, D. Segransan, F. Bouchy, F. Pepe, H. Deeg, J.M. Almenara, M. Gillon, M. Mayor, M. Rabus, N.C. Santos, R. Alonso, S. Udry, T. Forveille, V. Neves, X. Bonfils, X.Delfosse

arxiv:1109.2505 v1 · 2011-09-12 · astro-ph.EP · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z45SAOC5QZVC3WWLDBIHKIP25J}

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	2026-05-18T04:13:37.512351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf3b20385d866a2ddacb18507521faea5710ce892b8fe2bebdccf7a88d452af7

Aliases

arxiv: 1109.2505 · arxiv_version: 1109.2505v1 · doi: 10.48550/arxiv.1109.2505 · pith_short_12: Z45SAOC5QZVC · pith_short_16: Z45SAOC5QZVC3WWL · pith_short_8: Z45SAOC5

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/Z45SAOC5QZVC3WWLDBIHKIP25J \
  | 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: cf3b20385d866a2ddacb18507521faea5710ce892b8fe2bebdccf7a88d452af7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5efa8794239dd93bc44e32f87e8618cb5ad8eed61d4681fdaf2edc56b122045",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2011-09-12T15:27:45Z",
    "title_canon_sha256": "56bb89788ec391aeffcaf2a32d131482cc594d516ac71a9d10b2f26ffab55391"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.2505",
    "kind": "arxiv",
    "version": 1
  }
}