Pith Number

pith:5S2XYDNI

pith:2009:5S2XYDNIJQJHPHKWMOU7ZGX3PR

not attested not anchored not stored refs pending

Is the HR 8799 extrasolar system destined for planetary scattering?

Cezary Migaszewski, Krzysztof Gozdziewski

arxiv:0904.4106 v1 · 2009-04-27 · 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{5S2XYDNIJQJHPHKWMOU7ZGX3PR}

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	2026-05-18T02:13:57.185762Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ecb57c0da84c12779d5663a9fc9afb7c7b60a0d2ec475ac1ae8d3b8dbc49e395

Aliases

arxiv: 0904.4106 · arxiv_version: 0904.4106v1 · doi: 10.48550/arxiv.0904.4106 · pith_short_12: 5S2XYDNIJQJH · pith_short_16: 5S2XYDNIJQJHPHKW · pith_short_8: 5S2XYDNI

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/5S2XYDNIJQJHPHKWMOU7ZGX3PR \
  | 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: ecb57c0da84c12779d5663a9fc9afb7c7b60a0d2ec475ac1ae8d3b8dbc49e395

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ae3f8b256484a3128263f3bf7c3b7ab8eb7fc335611916b9136251dc3a1e81a",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-04-27T18:51:43Z",
    "title_canon_sha256": "79dbcf23761c21c0dca6b60abf8e8c8c17939a8a46b0eae8aab9840f629b3c3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4106",
    "kind": "arxiv",
    "version": 1
  }
}