Pith Number

pith:2BQIGGRI

pith:2010:2BQIGGRINNZQD26OMDLP67GKSW

not attested not anchored not stored refs pending

The visitor from an ancient galaxy: A planetary companion around an old, metal-poor red horizontal branch star

Boyke Rochau (1), Hans-Walter Rix (1), Jens Rodmann (2), Johny Setiawan (1), Rainer J. Klement (1), Thomas Henning (1), Tim Schulze-Hartung (1) (1) MPIA Heidelberg (2) ESTEC

arxiv:1011.4938 v1 · 2010-11-22 · astro-ph.EP · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2BQIGGRINNZQD26OMDLP67GKSW}

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	2026-05-18T02:04:42.296563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d060831a286b7301ebce60d6ff7cca95bcf5844d19a3b7938152c2418f408f4b

Aliases

arxiv: 1011.4938 · arxiv_version: 1011.4938v1 · doi: 10.48550/arxiv.1011.4938 · pith_short_12: 2BQIGGRINNZQ · pith_short_16: 2BQIGGRINNZQD26O · pith_short_8: 2BQIGGRI

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/2BQIGGRINNZQD26OMDLP67GKSW \
  | 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: d060831a286b7301ebce60d6ff7cca95bcf5844d19a3b7938152c2418f408f4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59e32e3fe537debac9d05ce6fa401d632b2ea6744c8d4397e6e1efee11dd0203",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2010-11-22T21:00:00Z",
    "title_canon_sha256": "45f3d7ed38043d3b9b4c1c35bd9a1da5fa35fdcb08e41973dacea036ee854a0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.4938",
    "kind": "arxiv",
    "version": 1
  }
}