Pith Number

pith:LNBZLZ4O

pith:2026:LNBZLZ4OFMA65PDDJIWM7BYE7Y

not attested not anchored not stored refs pending

Is the Dark Comet 1998 KY$_{26}$ the Spacecraft Phobos 1?

Abraham Loeb, Adam Crowl, Adam Hibberd, Carlos G\'omez de Olea Ballester

arxiv:2606.01288 v1 · 2026-05-31 · 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{LNBZLZ4OFMA65PDDJIWM7BYE7Y}

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	2026-06-02T02:04:29.125037Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5b4395e78e2b01eebc634a2ccf8704fe37cddbbea15bd1285db49ebbf87bbe85

Aliases

arxiv: 2606.01288 · arxiv_version: 2606.01288v1 · doi: 10.48550/arxiv.2606.01288 · pith_short_12: LNBZLZ4OFMA6 · pith_short_16: LNBZLZ4OFMA65PDD · pith_short_8: LNBZLZ4O

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/LNBZLZ4OFMA65PDDJIWM7BYE7Y \
  | 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: 5b4395e78e2b01eebc634a2ccf8704fe37cddbbea15bd1285db49ebbf87bbe85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09843d27968fae4e4ae394b7f91577a8daf4e5a08b0e20ade2a2da5feda65e44",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2026-05-31T15:19:58Z",
    "title_canon_sha256": "2290283b4a44a2fbb52cec6a343cf895c0c43915ff42575b02182619543c519e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.01288",
    "kind": "arxiv",
    "version": 1
  }
}