Pith Number

pith:LDZPFD7V

pith:2023:LDZPFD7VGG2AMNWCT4EBOPYYTV

not attested not anchored not stored refs pending

The Breakthrough Listen Search for Intelligent Life: A Laser Search Pipeline for the Automated Planet Finder

Andrew Siemion, Anna Zuckerman, Danny Price, Howard Isaacson, Matt Lebofsky, Steve Croft, Zoe Ko

arxiv:2301.06971 v1 · 2023-01-17 · astro-ph.IM · astro-ph.EP · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LDZPFD7VGG2AMNWCT4EBOPYYTV}

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	2026-07-05T05:46:35.639644Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58f2f28ff531b40636c29f08173f189d4515829752a0a735c3f78b607d755fba

Aliases

arxiv: 2301.06971 · arxiv_version: 2301.06971v1 · doi: 10.48550/arxiv.2301.06971 · pith_short_12: LDZPFD7VGG2A · pith_short_16: LDZPFD7VGG2AMNWC · pith_short_8: LDZPFD7V

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/LDZPFD7VGG2AMNWCT4EBOPYYTV \
  | 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: 58f2f28ff531b40636c29f08173f189d4515829752a0a735c3f78b607d755fba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "612aefe58cad91013f5c93b16bde412de062dfa8963dd4a42ea79f0ac40954b0",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2023-01-17T15:47:36Z",
    "title_canon_sha256": "38bb121a8b520aefb0514efc5c071a17fc7f5eebf8e9543b7b501cec030b3908"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2301.06971",
    "kind": "arxiv",
    "version": 1
  }
}