Pith Number

pith:X23V34O2

pith:2025:X23V34O2OLSWOOSKMRPYQPQKHW

not attested not anchored not stored refs pending

Using anomaly detection to search for technosignatures in Breakthrough Listen observations

Andrew P. V. Siemion, Dovi Poznanski, Matthew Lebofsky, Snir Pardo, Steve Croft

arxiv:2505.03927 v1 · 2025-05-06 · 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{X23V34O2OLSWOOSKMRPYQPQKHW}

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	2026-07-05T10:59:33.859662Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

beb75df1da72e5673a4a645f883e0a3db036b8ab172364a936d5e33530df5d79

Aliases

arxiv: 2505.03927 · arxiv_version: 2505.03927v1 · doi: 10.48550/arxiv.2505.03927 · pith_short_12: X23V34O2OLSW · pith_short_16: X23V34O2OLSWOOSK · pith_short_8: X23V34O2

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/X23V34O2OLSWOOSKMRPYQPQKHW \
  | 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: beb75df1da72e5673a4a645f883e0a3db036b8ab172364a936d5e33530df5d79

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a79e6d87887fd84cfd11f919a7816f85be33ae4860e014c3d2524178a17cddd6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2025-05-06T19:04:41Z",
    "title_canon_sha256": "abf18fc33423a83665e7688e5eafb18562f75241661c4a19034b0e67adcc99cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.03927",
    "kind": "arxiv",
    "version": 1
  }
}