Pith Number

pith:A5Z7G2UD

pith:2019:A5Z7G2UDHGGVFW67XEWPXCB44V

not attested not anchored not stored refs pending

Genetic Algorithms for Starshade Retargeting in Space-Based Telescopes

Ho Chit Siu, Victor Pankratius

arxiv:1907.09789 v1 · 2019-07-23 · astro-ph.IM · cs.AI · cs.NE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A5Z7G2UDHGGVFW67XEWPXCB44V}

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	2026-05-17T23:39:50.033361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0773f36a83398d52dbdfb92cfb883ce574fa23194584af3215ae29730881899a

Aliases

arxiv: 1907.09789 · arxiv_version: 1907.09789v1 · doi: 10.48550/arxiv.1907.09789 · pith_short_12: A5Z7G2UDHGGV · pith_short_16: A5Z7G2UDHGGVFW67 · pith_short_8: A5Z7G2UD

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/A5Z7G2UDHGGVFW67XEWPXCB44V \
  | 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: 0773f36a83398d52dbdfb92cfb883ce574fa23194584af3215ae29730881899a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba90413f472b5ec78cb1bacc7e5cd9211413996989e5754e38f33d087d8a2316",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.NE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-07-23T09:45:21Z",
    "title_canon_sha256": "d4a850f55742235af15a4e4eb70e910a16880ca2fc17f5b092067e649058727f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.09789",
    "kind": "arxiv",
    "version": 1
  }
}