Pith Number

pith:N4X5VHL3

pith:2009:N4X5VHL3AOGWYVXWXY4S4YTMLE

not attested not anchored not stored refs pending

Imaging faint brown dwarf companions close to bright stars with a small, well-corrected telescope aperture

B. Mennesson, D. Mawet, E. Bloemhof, E. Serabyn, J. Hickey, K. Wallace, P. Haguenauer

arxiv:0903.4488 v1 · 2009-03-25 · astro-ph.GA · 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{N4X5VHL3AOGWYVXWXY4S4YTMLE}

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	2026-05-18T04:29:15.600336Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f2fda9d7b038d6c56f6be392e626c5904fbfbd457aa456c094c397ab77f7396

Aliases

arxiv: 0903.4488 · arxiv_version: 0903.4488v1 · doi: 10.48550/arxiv.0903.4488 · pith_short_12: N4X5VHL3AOGW · pith_short_16: N4X5VHL3AOGWYVXW · pith_short_8: N4X5VHL3

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/N4X5VHL3AOGWYVXWXY4S4YTMLE \
  | 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: 6f2fda9d7b038d6c56f6be392e626c5904fbfbd457aa456c094c397ab77f7396

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5d8fb041da4247d34072114bfaf79260ed07c2fc8a1ef175e6d243b1c52f5d7",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-03-25T23:38:11Z",
    "title_canon_sha256": "9b4223dfc253191d608b275fcee0b2db316aa3ea682d2d73293bfe785ecab7fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.4488",
    "kind": "arxiv",
    "version": 1
  }
}