Pith Number

pith:QPANGXWF

pith:2011:QPANGXWF2FG7PSWYAJKM3WUZ3U

not attested not anchored not stored refs pending

Impact of technological synchronicity on prospects for CETI

Anamari Naki\'c, Ivana Oto\v{c}an, Marko Horvat

arxiv:1112.0423 v1 · 2011-12-02 · physics.pop-ph · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QPANGXWF2FG7PSWYAJKM3WUZ3U}

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	2026-05-18T04:07:07.255586Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83c0d35ec5d14df7cad80254cdda99dd0d4c1e364e38bf34be375e8cc4a205ec

Aliases

arxiv: 1112.0423 · arxiv_version: 1112.0423v1 · doi: 10.48550/arxiv.1112.0423 · pith_short_12: QPANGXWF2FG7 · pith_short_16: QPANGXWF2FG7PSWY · pith_short_8: QPANGXWF

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/QPANGXWF2FG7PSWYAJKM3WUZ3U \
  | 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: 83c0d35ec5d14df7cad80254cdda99dd0d4c1e364e38bf34be375e8cc4a205ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "850af02cf8340617d87b148af7eddd19a87e130c60d3707d2ba2a97f55171bf6",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2011-12-02T10:52:24Z",
    "title_canon_sha256": "7e8127806cb801a4760aeec1359c5e9ea8845d6c851b66629b97ae75e5bdaf8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.0423",
    "kind": "arxiv",
    "version": 1
  }
}