Pith Number

pith:QMPJSJUH

pith:2016:QMPJSJUHB56Z2SDDFNOZJVBTLJ

not attested not anchored not stored refs pending

Kepler-21b: A rocky planet around a V = 8.25 magnitude star

Aldo F. M. Fiorenzano, Aldo S. Bonomo, Alessandro Sozzetti, Andrew Collier Cameron, Andrew Vanderburg, Annelies Mortier, Avet Harutyunyan, Christophe Lovis, Chris Watson, Courtney D. Dressing, Damien Segransan, David Charbonneau, David F. Phillips, David W. Latham, Didier Queloz, Dimitar Sasselov, Don Pollacco, Emilio Molinari, Eric D. Lopez, Fatemeh Motalebi, Francesco Pepe, Giampaolo Piotto, Giusi Micela, Helen A. C. Giles, Jeffrey L. Coughlin, John Asher Johnson, Ken Rice, Lars A. Buchhave, Laura Affer, Li Zeng, Luca Malavolta, Mercedes Lopez-Morales, Michel Mayor, Pedro Figueira, Raphaelle D. Haywood, Rosario Cosentino, Stephane Udry, Valerio Nascimbeni, Xavier Dumusque

arxiv:1609.07617 v1 · 2016-09-24 · 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{QMPJSJUHB56Z2SDDFNOZJVBTLJ}

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	2026-05-18T00:55:11.689706Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

831e9926870f7d9d48632b5d94d4335a421e4a7c77fbd648d981a142cf64c4e8

Aliases

arxiv: 1609.07617 · arxiv_version: 1609.07617v1 · doi: 10.48550/arxiv.1609.07617 · pith_short_12: QMPJSJUHB56Z · pith_short_16: QMPJSJUHB56Z2SDD · pith_short_8: QMPJSJUH

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/QMPJSJUHB56Z2SDDFNOZJVBTLJ \
  | 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: 831e9926870f7d9d48632b5d94d4335a421e4a7c77fbd648d981a142cf64c4e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "005e243a1544db6e7163849765746f2f4da9c171475cfa81dd6ed7529b71ed1c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2016-09-24T13:21:24Z",
    "title_canon_sha256": "2135bd6569aa77da21a8d600a8a011125556d456e44e66a8c3659a2e90fec5d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.07617",
    "kind": "arxiv",
    "version": 1
  }
}