Pith Number

pith:YDNB2TZV

pith:2011:YDNB2TZVC6ADUK62DF5TYRSRQZ

not attested not anchored not stored refs pending

Upsilon Andromedae b in polarized light: New constraints on the planet size, density and albedo

A.V. Berdyugin, S.V. Berdyugina, V. Piirola

arxiv:1109.3116 v1 · 2011-09-14 · astro-ph.EP · astro-ph.IM · 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{YDNB2TZVC6ADUK62DF5TYRSRQZ}

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	2026-05-18T04:13:06.262860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0da1d4f3517803a2bda197b3c46518665e2906cff90a081ae1948d6355ff7b1

Aliases

arxiv: 1109.3116 · arxiv_version: 1109.3116v1 · doi: 10.48550/arxiv.1109.3116 · pith_short_12: YDNB2TZVC6AD · pith_short_16: YDNB2TZVC6ADUK62 · pith_short_8: YDNB2TZV

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/YDNB2TZVC6ADUK62DF5TYRSRQZ \
  | 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: c0da1d4f3517803a2bda197b3c46518665e2906cff90a081ae1948d6355ff7b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48836522105f6a5566c22101736de73deb3a96995623750a6460f917009eadfe",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2011-09-14T15:55:43Z",
    "title_canon_sha256": "556291e9be2584ab357e48aee397d7dfc89bb58c54b84158393a389208c24095"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.3116",
    "kind": "arxiv",
    "version": 1
  }
}