Pith Number

pith:W4PLTXVL

pith:2009:W4PLTXVLLEOG6WEWWRBRG5F6F5

not attested not anchored not stored refs pending

The Orbital Evolution of Gas Giant Planets around Giant Stars

Eva Villaver (UAM), Mario Livio (STScI)

arxiv:0910.2396 v1 · 2009-10-13 · 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{W4PLTXVLLEOG6WEWWRBRG5F6F5}

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	2026-05-18T02:34:19.026425Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b71eb9deab591c6f5896b4431374be2f4a8843ca4c927da98bdafa84ba18e635

Aliases

arxiv: 0910.2396 · arxiv_version: 0910.2396v1 · doi: 10.48550/arxiv.0910.2396 · pith_short_12: W4PLTXVLLEOG · pith_short_16: W4PLTXVLLEOG6WEW · pith_short_8: W4PLTXVL

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/W4PLTXVLLEOG6WEWWRBRG5F6F5 \
  | 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: b71eb9deab591c6f5896b4431374be2f4a8843ca4c927da98bdafa84ba18e635

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "633a9ec4fdd72d05e7648aa4c12eb88a869d8672bdb17865eb5383ac61464730",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-10-13T13:52:43Z",
    "title_canon_sha256": "507226db5c632e6f0c7b62103fdc61f3f4267e827eea5d169d142d1a32957ac7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.2396",
    "kind": "arxiv",
    "version": 1
  }
}