Pith Number

pith:HDX5BLUQ

pith:2019:HDX5BLUQH2X7JQRJWMNNCFJA3L

not attested not anchored not stored refs pending

The Curious Case of KOI 4: Confirming Kepler's First Exoplanet

Allyson Bieryla, Andrew W. Howard, Ashley Chontos, Daniel Huber, David W. Latham, Guy Davies, Howard Isaacson, Isabel L. Colman, Jeff L. Coughlin, Lars A. Buchhave, Teruyuki Hirano, Tiago L. Campante, Timothy R. Bedding, Travis Berger, Vincent Van Eylen, William J. Chaplin

arxiv:1903.01591 v1 · 2019-03-04 · 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{HDX5BLUQH2X7JQRJWMNNCFJA3L}

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	2026-05-17T23:46:52.758980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38efd0ae903eaff4c229b31ad11520dad6145b865f04159783b0fc58b0c2fffa

Aliases

arxiv: 1903.01591 · arxiv_version: 1903.01591v1 · doi: 10.48550/arxiv.1903.01591 · pith_short_12: HDX5BLUQH2X7 · pith_short_16: HDX5BLUQH2X7JQRJ · pith_short_8: HDX5BLUQ

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/HDX5BLUQH2X7JQRJWMNNCFJA3L \
  | 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: 38efd0ae903eaff4c229b31ad11520dad6145b865f04159783b0fc58b0c2fffa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bd099980fa4a417687db8cab7cc0b719fc286dfe6de51d7ec4be83baec6ee31",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-03-04T23:50:14Z",
    "title_canon_sha256": "f522ec646c5d0093d4b5fa4261b90e699bb90fd10ebca13c948a6efd67327125"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.01591",
    "kind": "arxiv",
    "version": 1
  }
}