Pith Number

pith:XHMAKDCY

pith:2009:XHMAKDCYNCXUJPA3QC6FNWKKGA

not attested not anchored not stored refs pending

Detectability of Oort cloud objects using Kepler

Ehud Nakar, Eran O. Ofek

arxiv:0912.0948 v1 · 2009-12-04 · astro-ph.EP · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XHMAKDCYNCXUJPA3QC6FNWKKGA}

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	2026-05-18T02:10:26.346709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9d8050c5868af44bc1b80bc56d94a300d275f52eb14a2368e2074d44db5e052

Aliases

arxiv: 0912.0948 · arxiv_version: 0912.0948v1 · doi: 10.48550/arxiv.0912.0948 · pith_short_12: XHMAKDCYNCXU · pith_short_16: XHMAKDCYNCXUJPA3 · pith_short_8: XHMAKDCY

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/XHMAKDCYNCXUJPA3QC6FNWKKGA \
  | 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: b9d8050c5868af44bc1b80bc56d94a300d275f52eb14a2368e2074d44db5e052

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8256439a801c74cec60b707613f5922dd0c7cc7e911cd8c69c968844fae39d60",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-12-04T22:59:27Z",
    "title_canon_sha256": "f9b022a0abd188704805abb1315ee970e52de2c3fb974cb7b17b941fdbdfb5fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.0948",
    "kind": "arxiv",
    "version": 1
  }
}