Pith Number

pith:XW2J4K6P

pith:2007:XW2J4K6PL6L56XP54JOGSBR6ET

not attested not anchored not stored refs pending

Spitzer Limits On Dust Emission and Optical Gas Absorption Variability Around Nearby Stars with Edge-On Circumstellar Disk Signatures

Jacqueline E. Kessler-Silacci, Lucas A. Cieza, Seth Redfield

arxiv:astro-ph/0703089 v1 · 2007-03-05 · 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{XW2J4K6PL6L56XP54JOGSBR6ET}

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	2026-05-18T04:29:05.993810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bdb49e2bcf5f97df5dfde25c69063e24cf5d5da8371d8b1ec3700ce6bb13a868

Aliases

arxiv: astro-ph/0703089 · arxiv_version: astro-ph/0703089v1 · doi: 10.48550/arxiv.astro-ph/0703089 · pith_short_12: XW2J4K6PL6L5 · pith_short_16: XW2J4K6PL6L56XP5 · pith_short_8: XW2J4K6P

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/XW2J4K6PL6L56XP54JOGSBR6ET \
  | 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: bdb49e2bcf5f97df5dfde25c69063e24cf5d5da8371d8b1ec3700ce6bb13a868

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4d3c58285286cde883df15b36b1334e8204cf677ca927147ec15558c16abf8e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-03-05T21:10:07Z",
    "title_canon_sha256": "33846dfd126c34bf92fa02e6b167f78dea22763fd7471c8c157230b4a175046c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0703089",
    "kind": "arxiv",
    "version": 1
  }
}