Pith Number

pith:FSWMXMGB

pith:2012:FSWMXMGBLIZYKZ3GLWUPY3G6AY

not attested not anchored not stored refs pending

Infrared Non-detection of Fomalhaut b -- Implications for the Planet Interpretation

David Lafreniere, David Spiegel, Joe Carson, John Bent, Markus Janson, Palmer Wong

arxiv:1201.4388 v2 · 2012-01-20 · astro-ph.EP · 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{FSWMXMGBLIZYKZ3GLWUPY3G6AY}

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	2026-05-18T01:58:44.163310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2caccbb0c15a338567665da8fc6cde063a0be660d12cac486b4645e197e5076a

Aliases

arxiv: 1201.4388 · arxiv_version: 1201.4388v2 · doi: 10.48550/arxiv.1201.4388 · pith_short_12: FSWMXMGBLIZY · pith_short_16: FSWMXMGBLIZYKZ3G · pith_short_8: FSWMXMGB

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/FSWMXMGBLIZYKZ3GLWUPY3G6AY \
  | 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: 2caccbb0c15a338567665da8fc6cde063a0be660d12cac486b4645e197e5076a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c29539aa3c44c79cf54ffc04a1054923cac87fd923c4f1369a4d8fa365f3c70f",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2012-01-20T21:00:04Z",
    "title_canon_sha256": "11125b36a1ae0f21890cb5a762a2028d1e7453bb5141c5b68f93b7b917ba1305"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4388",
    "kind": "arxiv",
    "version": 2
  }
}