Pith Number

pith:OPF3O3MT

pith:2011:OPF3O3MTHUDXHSTLTBVPRYGY33

not attested not anchored not stored refs pending

Evidence Against an Edge-On Disk Around the Extrasolar Planet 2MASS 1207 b and a New Thick Cloud Explanation for its Under-Luminosity

Andrew J. Skemer, Beth A. Biller, D\'aniel Apai, Ilaria Pascucci, Laird M. Close, L\'aszl\'o Sz\H{u}cs

arxiv:1103.1880 v1 · 2011-03-09 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OPF3O3MTHUDXHSTLTBVPRYGY33}

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	2026-05-18T01:09:25.655500Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73cbb76d933d0773ca6b986af8e0d8dec8c79ef32dacac07b9858d524ea92d37

Aliases

arxiv: 1103.1880 · arxiv_version: 1103.1880v1 · doi: 10.48550/arxiv.1103.1880 · pith_short_12: OPF3O3MTHUDX · pith_short_16: OPF3O3MTHUDXHSTL · pith_short_8: OPF3O3MT

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/OPF3O3MTHUDXHSTLTBVPRYGY33 \
  | 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: 73cbb76d933d0773ca6b986af8e0d8dec8c79ef32dacac07b9858d524ea92d37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c30fafd9df41891e91644eef96df5af6baa1f77b8b15b2b3f21fad7bddd0046",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2011-03-09T21:00:24Z",
    "title_canon_sha256": "ee9eec20843f909b045b4ccfc2906d2ba1beafe0c1d3aaa45909522c6d8a0da6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.1880",
    "kind": "arxiv",
    "version": 1
  }
}