Pith Number

pith:S43RFQ7K

pith:2018:S43RFQ7KN7OUZCWTIWW2AXTTDX

not attested not anchored not stored refs pending

K2-155: A Bright Metal-Poor M Dwarf with Three Transiting Super-Earths

Akihiko Fukui, Alexis M. S. Smith, Anders Erikson, Artie P. Hatzes, Carina M. Persson, Davide Gandolfi, David Nespral, Eike W. Guenther, Enric Palle, Fei Dai, Grzegorz Nowak, Hans Deeg, Heike Rauer, Ignasi Ribas, John H. Livingston, Jorge Prieto-Arranz, Joshua N. Winn, Juan Cabrera, Judith Korth, Malcolm Fridlund, Martin P\"atzold, Michael Endl, Norio Narita, Oscar Barragan, Philipp Eigm\"uller, Prajwal Niraula, P. Wilson Cauley, Sascha Grziwa, Seth Redfield, Simon Albrecht, Szilard Csizmadia, Teruyuki Hirano, Vincent Van Eylen, William D. Cochran, Yuka Fujii

arxiv:1801.06957 v2 · 2018-01-22 · astro-ph.EP · astro-ph.SR

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

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	2026-05-18T00:21:20.434161Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

973712c3ea6fdd4c8ad345ada05e731ddcbeb5d86a982126420b73a78ee9f1fa

Aliases

arxiv: 1801.06957 · arxiv_version: 1801.06957v2 · doi: 10.48550/arxiv.1801.06957 · pith_short_12: S43RFQ7KN7OU · pith_short_16: S43RFQ7KN7OUZCWT · pith_short_8: S43RFQ7K

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/S43RFQ7KN7OUZCWTIWW2AXTTDX \
  | 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: 973712c3ea6fdd4c8ad345ada05e731ddcbeb5d86a982126420b73a78ee9f1fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dbf9692d21c08f01a841c04837607cd69fdfdc9cb7dc255d7cf63674c0317471",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-01-22T05:30:14Z",
    "title_canon_sha256": "236ad7df5c7cf9cd6f2263c7e375b7b16d4551246ccfbba4f532edb1359221e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.06957",
    "kind": "arxiv",
    "version": 2
  }
}