Pith Number

pith:QPB7BMFT

pith:2022:QPB7BMFTCBSYSW2CXUCGLSIT3U

not attested not anchored not stored refs pending

Setigen: Simulating Radio Technosignatures for SETI

Andrew P. V. Siemion, Bryan Brzycki, Cherry Ng, Danny C. Price, Imke de Pater, John Hoang, Sofia Z. Sheikh, Steve Croft, Zihe Zheng

arxiv:2203.09668 v1 · 2022-03-18 · 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{QPB7BMFTCBSYSW2CXUCGLSIT3U}

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	2026-07-05T04:47:14.391144Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83c3f0b0b31065895b42bd0465c913dd3dd6019c573f0ba34a872403daf3b779

Aliases

arxiv: 2203.09668 · arxiv_version: 2203.09668v1 · doi: 10.48550/arxiv.2203.09668 · pith_short_12: QPB7BMFTCBSY · pith_short_16: QPB7BMFTCBSYSW2C · pith_short_8: QPB7BMFT

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/QPB7BMFTCBSYSW2CXUCGLSIT3U \
  | 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: 83c3f0b0b31065895b42bd0465c913dd3dd6019c573f0ba34a872403daf3b779

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef9c0054e429bc525a836d85c4fd84c284d9c235d28419f38e4c681d32ad1cdc",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2022-03-18T00:31:02Z",
    "title_canon_sha256": "bebf8523478b64294179082d47fc9b7a64930a7d8f19d7e43c7943ceb27de16f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.09668",
    "kind": "arxiv",
    "version": 1
  }
}