Pith Number

pith:3SP2OVIK

pith:2019:3SP2OVIK3ITYZCJS7QH4A5YHBG

not attested not anchored not stored refs pending

A search for technosignatures from TRAPPIST-1, LHS 1140, and 10 planetary systems in the Kepler field with the Green Bank Telescope at 1.15-1.73 GHz

Adam H. Greenberg, Arjun Boddu, Aysen Tan, Bade Sayki, Brayden Hesford, Chad Bloxham, Dominic Rodger, Inbal Mizrahi, Jean-Luc Margot, Kira Hart, Luis Gerardo Chinchilla-Garcia, Micah Cliffe, Pavlo Pinchuk, Ruth Pike, Ryan S. Lynch, Sara Gallagher, Thomas Ayalde, Una Schneck, Yinxue "Yolanda" Xiao

arxiv:1901.04057 v1 · 2019-01-13 · astro-ph.EP · astro-ph.IM · 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{3SP2OVIK3ITYZCJS7QH4A5YHBG}

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	2026-05-17T23:52:38.644365Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc9fa7550ada278c8932fc0fc0770709b5df71b62ffcbb4826694a5ca59487e3

Aliases

arxiv: 1901.04057 · arxiv_version: 1901.04057v1 · doi: 10.48550/arxiv.1901.04057 · pith_short_12: 3SP2OVIK3ITY · pith_short_16: 3SP2OVIK3ITYZCJS · pith_short_8: 3SP2OVIK

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/3SP2OVIK3ITYZCJS7QH4A5YHBG \
  | 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: dc9fa7550ada278c8932fc0fc0770709b5df71b62ffcbb4826694a5ca59487e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74a416207df299394c4ec2d882a8f83a8ac7039e8ee2cdf90b2d0f7af58eb8c3",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "physics.pop-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-01-13T20:38:23Z",
    "title_canon_sha256": "f6434d4953404a43454dc83fef47a6874f9f6882cb6d93ecd5ad38efc94b95e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.04057",
    "kind": "arxiv",
    "version": 1
  }
}