Pith Number

pith:PMPQUWZB

pith:2011:PMPQUWZBWOGZZN5GCBO2XMIFJ3

not attested not anchored not stored refs pending

The 55 Cancri System: Fundamental Stellar Parameters, Habitable Zone Planet, and Super-Earth Diameter

(2) Georgia State, 3), (3) Hubble Fellow, (4) ESO, (5) CSIC-IEEC/CIW-DTM, (6) CHARA, (7) NOAO), C. Farrington (6), D. R. Ciardi (1), G. Schaefer (6), G. T. van Belle (4), H. A. McAlister (2), J. Sturmann (6), K. von Braun (1), L. Sturmann (6), M. Lopez-Morales (5), N. H. Turner (6), P. J. Goldfinger (6) ((1) NExScI/Caltech, R. White (2), S. R. Kane (1), S. T. Ridgway (7), T. A. ten Brummelaar (6), T. S. Boyajian (2

arxiv:1107.1936 v1 · 2011-07-11 · 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{PMPQUWZBWOGZZN5GCBO2XMIFJ3}

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	2026-05-18T04:18:33.834729Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b1f0a5b21b38d9cb7a6105dabb1054ef222f860acbb13ef5dbf808ccff0d478

Aliases

arxiv: 1107.1936 · arxiv_version: 1107.1936v1 · doi: 10.48550/arxiv.1107.1936 · pith_short_12: PMPQUWZBWOGZ · pith_short_16: PMPQUWZBWOGZZN5G · pith_short_8: PMPQUWZB

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/PMPQUWZBWOGZZN5GCBO2XMIFJ3 \
  | 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: 7b1f0a5b21b38d9cb7a6105dabb1054ef222f860acbb13ef5dbf808ccff0d478

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc0bc6717bda02d7e59c79a9ef1f9135e8285541f4e8e4dde9bd69fe10ffa82a",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2011-07-11T04:54:17Z",
    "title_canon_sha256": "0501153f802583df2df70427cad38de9f6548615e463be27dcbd3171653ef926"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.1936",
    "kind": "arxiv",
    "version": 1
  }
}