Pith Number

pith:2OL3HRXL

pith:2021:2OL3HRXLDE27PYQCYNCCDEPJN6

not attested not anchored not stored refs pending

Analysis of the Breakthrough Listen signal of interest blc1 with a technosignature verification framework

Andrew P. V. Siemion, Andrew Zic, Brian C. Lacki, Cherry Ng, Claire Isabel Webb, Daniel J. Czech, Danny C. Price, David DeBoer, David H. E. MacMahon, Howard Isaacson, Jamie Drew, Karen I. Perez, Matt Lebofsky, Shane Smith, Sofia Z. Sheikh, S. Pete Worden, Steve Croft, Vishal Gajjar

arxiv:2111.06350 v1 · 2021-11-11 · astro-ph.IM · astro-ph.EP · physics.pop-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2OL3HRXLDE27PYQCYNCCDEPJN6}

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	2026-07-05T03:31:00.872662Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d397b3c6eb1935f7e202c3442191e96fa5922001973884a114b9feb00faf3670

Aliases

arxiv: 2111.06350 · arxiv_version: 2111.06350v1 · doi: 10.48550/arxiv.2111.06350 · pith_short_12: 2OL3HRXLDE27 · pith_short_16: 2OL3HRXLDE27PYQC · pith_short_8: 2OL3HRXL

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/2OL3HRXLDE27PYQCYNCCDEPJN6 \
  | 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: d397b3c6eb1935f7e202c3442191e96fa5922001973884a114b9feb00faf3670

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "946acafea7ef141d3850df4ae84db0643c74d9746cc4972c04d622ffb9d576b8",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "physics.pop-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-11-11T18:02:39Z",
    "title_canon_sha256": "0241c9f3ec906d7b788c5b53e26dd38b05ea10b9919955ba1f54bf140271f634"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.06350",
    "kind": "arxiv",
    "version": 1
  }
}