Pith Number

pith:OJBCBQ63

pith:1998:OJBCBQ632TFJ7RWOS2JZ5OELKB

not attested not anchored not stored refs pending

1620 Geographos and 433 Eros: Shaped by Planetary Tides?

D. C. Richardson, Jr. (Cornell), P. Michel, S. Love, W. F. Bottke

arxiv:astro-ph/9812235 v1 · 1998-12-11 · astro-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{OJBCBQ632TFJ7RWOS2JZ5OELKB}

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	2026-05-18T03:47:42.525726Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

724220c3dbd4ca9fc6ce96939eb88b5051593c38cef481e73da7a092ea60a91b

Aliases

arxiv: astro-ph/9812235 · arxiv_version: astro-ph/9812235v1 · doi: 10.48550/arxiv.astro-ph/9812235 · pith_short_12: OJBCBQ632TFJ · pith_short_16: OJBCBQ632TFJ7RWO · pith_short_8: OJBCBQ63

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/OJBCBQ632TFJ7RWOS2JZ5OELKB \
  | 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: 724220c3dbd4ca9fc6ce96939eb88b5051593c38cef481e73da7a092ea60a91b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b71748e34229409e8524f18eb637c3e42fea2e80a8558d4e79ffafbd04e8e994",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-12-11T20:04:05Z",
    "title_canon_sha256": "8f4a682b0d7f662b8b7f9089fe03a8972cfc07d3c00a3a0c01b06e9b429fcb61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9812235",
    "kind": "arxiv",
    "version": 1
  }
}