Pith Number

pith:7FHPNEYM

pith:2014:7FHPNEYM23POW2EG53TTRFXG6H

not attested not anchored not stored refs pending

Quantifying the Fermi paradox in the local Solar neighborhood

Daniel Cartin

arxiv:1404.0204 v1 · 2014-04-01 · physics.pop-ph · cond-mat.stat-mech

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7FHPNEYM23POW2EG53TTRFXG6H}

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	2026-05-18T02:49:38.536411Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f94ef6930cd6deeb6886eee73896e6f1f89a425ca8a92d7314479f117e52a27e

Aliases

arxiv: 1404.0204 · arxiv_version: 1404.0204v1 · doi: 10.48550/arxiv.1404.0204 · pith_short_12: 7FHPNEYM23PO · pith_short_16: 7FHPNEYM23POW2EG · pith_short_8: 7FHPNEYM

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/7FHPNEYM23POW2EG53TTRFXG6H \
  | 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: f94ef6930cd6deeb6886eee73896e6f1f89a425ca8a92d7314479f117e52a27e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c95b3d6a24d072a37fa0921b500c6596ec3f711a82f8cd473281302477595c87",
    "cross_cats_sorted": [
      "cond-mat.stat-mech"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2014-04-01T11:40:26Z",
    "title_canon_sha256": "33d7aca999004e67f1697fe18009369b48f80a0346ee36f345823d6fae048c5a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.0204",
    "kind": "arxiv",
    "version": 1
  }
}