Pith Number

pith:X4DIYGJX

pith:2014:X4DIYGJXCKD2ZJBRTZHFOXEC5Y

not attested not anchored not stored refs pending

Searching for Extraterrestrial Intelligence with the Square Kilometre Array

Alan Penny, Andrew P. V. Siemion, Dan Werthimer, David Messerschmitt, David R. DeBoer, Eric J. Korpela, Heino Falcke, Ian S. Morrison, James Benford, James Cordes, Jayanth Chennamangalam, Jill Tarter, Jin Cheng-Jin, Joseph Lazio, Laura Spitler, Leonid Gurvits, Melvin Hoare, Mike Garrett, Simon Garrington, Tim O'Brien, Zsolt Paragi

arxiv:1412.4867 v1 · 2014-12-16 · astro-ph.IM · 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{X4DIYGJXCKD2ZJBRTZHFOXEC5Y}

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	2026-05-18T02:31:10.271132Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf068c19371287aca4319e4e575c82ee1e2e62dc7c3fd710139c233ff20b801a

Aliases

arxiv: 1412.4867 · arxiv_version: 1412.4867v1 · doi: 10.48550/arxiv.1412.4867 · pith_short_12: X4DIYGJXCKD2 · pith_short_16: X4DIYGJXCKD2ZJBR · pith_short_8: X4DIYGJX

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/X4DIYGJXCKD2ZJBRTZHFOXEC5Y \
  | 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: bf068c19371287aca4319e4e575c82ee1e2e62dc7c3fd710139c233ff20b801a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d7b4f401bdcffdc7a00a69de7219847c9dedb91e46d22a3617be2d77baaa0f2",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2014-12-16T03:20:34Z",
    "title_canon_sha256": "15ecca1e126748a22966f60e2b2bcb37e801e63c8f1809e5b4872d4a283df7b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.4867",
    "kind": "arxiv",
    "version": 1
  }
}