Pith Number

pith:5SJTIEOW

pith:2000:5SJTIEOWWQJNDBGLJJEMGVPL4Z

not attested not anchored not stored refs pending

A Search for Exozodiacal Dust and Faint Companions Near Sirius, Procyon, and Altair with the NICMOS Coronagraph

Marc J. Kuchner (Caltech), Michael E. Brown (Caltech)

arxiv:astro-ph/0002043 v1 · 2000-02-02 · 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{5SJTIEOWWQJNDBGLJJEMGVPL4Z}

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	2026-07-04T16:16:00.497879Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec933411d6b412d184cb4a48c355ebe67f515c4bd565b5d8feaa1d90edcf70c7

Aliases

arxiv: astro-ph/0002043 · arxiv_version: astro-ph/0002043v1 · doi: 10.48550/arxiv.astro-ph/0002043 · pith_short_12: 5SJTIEOWWQJN · pith_short_16: 5SJTIEOWWQJNDBGL · pith_short_8: 5SJTIEOW

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/5SJTIEOWWQJNDBGLJJEMGVPL4Z \
  | 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: ec933411d6b412d184cb4a48c355ebe67f515c4bd565b5d8feaa1d90edcf70c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b73424269c9b7972fb972f8c11a10fa938bbf7d7e8a5af4f6c47b4b750dda714",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-02-02T05:51:40Z",
    "title_canon_sha256": "1bf62290a481954c162706f266e229d279875394fb69081f042ca5d8a5a338f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0002043",
    "kind": "arxiv",
    "version": 1
  }
}