Pith Number

pith:SAZQ5GXS

pith:2022:SAZQ5GXSAKAABIXPSJ5GCNTGNN

not attested not anchored not stored refs pending

Refinement of the convex shape model and tumbling spin state of (99942) Apophis using the 2020-2021 apparition data

A. Marciniak, A. P\'al, D. B. Caton, D. E. Reichart, D.-G. Roh, D.-H. Kim, E. Gomez, E. Sonbas, F. Yoshida, H.-J. Lee, H.-K. Moon, H.-S. Yim, H. Yang, J. Chatelain, K. Kami\'nski, M. Dr\'o\.zd\.z, M.-J. Kim, M. Kaplan, M. K. Kami\'nska, M. \.Zejmo, N. Erasmus, O. Erece, P. Janse van Rensburg, R. Duffard, R. Lees, R. Szak\'ats, S. Greenstreet, S. Mottola, S. Zo{\l}a, T. A. Lister, T. Kim, W. Og{\l}oza, Y.-J. Choi

arxiv:2204.02540 v1 · 2022-04-06 · 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{SAZQ5GXSAKAABIXPSJ5GCNTGNN}

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	2026-07-05T04:24:18.996964Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90330e9af2028000a2ef927a6136666b4f517dd4b13e8d7b344ef3d664ffc022

Aliases

arxiv: 2204.02540 · arxiv_version: 2204.02540v1 · doi: 10.48550/arxiv.2204.02540 · pith_short_12: SAZQ5GXSAKAA · pith_short_16: SAZQ5GXSAKAABIXP · pith_short_8: SAZQ5GXS

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/SAZQ5GXSAKAABIXPSJ5GCNTGNN \
  | 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: 90330e9af2028000a2ef927a6136666b4f517dd4b13e8d7b344ef3d664ffc022

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d604cd6b035ac9d7baab60f97d577042a1c6183469f2246e8b39b1e16446bd1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2022-04-06T01:42:21Z",
    "title_canon_sha256": "4586d1bdf2c22e1c48674cf270370f7b29ede008ad8de92b1c83427a7f202b2a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.02540",
    "kind": "arxiv",
    "version": 1
  }
}