Pith Number

pith:GXSV264I

pith:2009:GXSV264IQUF624VY6V2HBL474Z

not attested not anchored not stored refs pending

A Computational Analysis of Galactic Exploration with Space Probes: Implications for the Fermi Paradox

\'Alvaro Morales, Carlos Cotta

arxiv:0907.0345 v1 · 2009-07-02 · physics.pop-ph · astro-ph.EP

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GXSV264IQUF624VY6V2HBL474Z}

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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.

Cited by

1 paper in Pith

The Cosmological Hart-Tipler Conjecture

Receipt and verification

First computed	2026-07-04T15:46:12.921786Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

35e55d7b88850bed72b8f57470af9fe672b9fd8f3b2f5dfb8ae626d996fe127f

Aliases

arxiv: 0907.0345 · arxiv_version: 0907.0345v1 · doi: 10.48550/arxiv.0907.0345 · pith_short_12: GXSV264IQUF6 · pith_short_16: GXSV264IQUF624VY · pith_short_8: GXSV264I

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/GXSV264IQUF624VY6V2HBL474Z \
  | 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: 35e55d7b88850bed72b8f57470af9fe672b9fd8f3b2f5dfb8ae626d996fe127f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dcdf1ff340f8d389ab0f3560c8de55e3315de9cffdbea8d1c33f9df6e110ea76",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2009-07-02T11:29:22Z",
    "title_canon_sha256": "17cbe4b752356aa7e428452478ff6edb89c087a8f30b5213d6567c9bb87ff67e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.0345",
    "kind": "arxiv",
    "version": 1
  }
}