Pith Number

pith:VGTIW4NT

pith:2018:VGTIW4NTW4KATUR7ILW6U7FB4E

not attested not anchored not stored refs pending

The orbital architecture and debris disks of the HR 8799 planetary system

Cezary Migaszewski, Krzysztof Gozdziewski

arxiv:1807.05898 v1 · 2018-07-16 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VGTIW4NTW4KATUR7ILW6U7FB4E}

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	2026-05-18T00:03:46.176082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9a68b71b3b71409d23f42edea7ca1e109ad41d098417a622f56a7cc931bd2b2

Aliases

arxiv: 1807.05898 · arxiv_version: 1807.05898v1 · doi: 10.48550/arxiv.1807.05898 · pith_short_12: VGTIW4NTW4KA · pith_short_16: VGTIW4NTW4KATUR7 · pith_short_8: VGTIW4NT

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/VGTIW4NTW4KATUR7ILW6U7FB4E \
  | 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: a9a68b71b3b71409d23f42edea7ca1e109ad41d098417a622f56a7cc931bd2b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3825b234d796203032703f5f967794d81ba962de564fb770c589fff76588597",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-07-16T14:50:10Z",
    "title_canon_sha256": "1cfa6ce3cc20d2bf82479463ad4d54825fa50c8254b30f4140fc1da9ca5c747d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.05898",
    "kind": "arxiv",
    "version": 1
  }
}