Pith Number

pith:F5WDU6R2

pith:2011:F5WDU6R2KWOFONRDPU4OMS4VE3

not attested not anchored not stored refs pending

Know the Star, Know the Planet. II. Speckle Interferometry of Exoplanet Host Stars

Brian D. Mason, Deepak Raghavan, John P. Subasavage, Lewis C. Roberts Jr., Nils H. Turner, Theo A. ten Brummelaar, William I. Hartkopf

arxiv:1109.4569 v1 · 2011-09-21 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F5WDU6R2KWOFONRDPU4OMS4VE3}

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	2026-05-18T02:00:27.119200Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f6c3a7a3a559c5736237d38e64b9526e1d6372aeff8ea685b71c62184cfe6d3

Aliases

arxiv: 1109.4569 · arxiv_version: 1109.4569v1 · doi: 10.48550/arxiv.1109.4569 · pith_short_12: F5WDU6R2KWOF · pith_short_16: F5WDU6R2KWOFONRD · pith_short_8: F5WDU6R2

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/F5WDU6R2KWOFONRDPU4OMS4VE3 \
  | 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: 2f6c3a7a3a559c5736237d38e64b9526e1d6372aeff8ea685b71c62184cfe6d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18dbac1de36f5741703f2f7bd64a6cfada4c86e80847705743f077789d4cac63",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-09-21T16:09:55Z",
    "title_canon_sha256": "acaadebf3e6dcc06ca4a2533ed9f4a445fd0c9b8d34a3607dcc6a818fde8d4a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4569",
    "kind": "arxiv",
    "version": 1
  }
}