Pith Number

pith:RQ3PURYV

pith:2018:RQ3PURYV74CLYDQBFROM3HK7SN

not attested not anchored not stored refs pending

Compact multi-planet systems are more common around metal poor hosts

Daniel Foreman-Mackey, Debra A. Fischer, John M. Brewer, Songhu Wang

arxiv:1810.10009 v1 · 2018-10-23 · 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{RQ3PURYV74CLYDQBFROM3HK7SN}

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	2026-05-18T00:01:57.177177Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8c36fa4715ff04bc0e012c5ccd9d5f935edc528bfa7e50a4a0c10b1499fc18de

Aliases

arxiv: 1810.10009 · arxiv_version: 1810.10009v1 · doi: 10.48550/arxiv.1810.10009 · pith_short_12: RQ3PURYV74CL · pith_short_16: RQ3PURYV74CLYDQB · pith_short_8: RQ3PURYV

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/RQ3PURYV74CLYDQBFROM3HK7SN \
  | 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: 8c36fa4715ff04bc0e012c5ccd9d5f935edc528bfa7e50a4a0c10b1499fc18de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65610508242432fbd58be4620b03c61fb4e5d28b577f8f24700ee432d1b4b37c",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2018-10-23T18:00:00Z",
    "title_canon_sha256": "59317ac9c792d0d5db3d735665eccf6ee69e124451a7a2b07a72805e3fd5f56b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.10009",
    "kind": "arxiv",
    "version": 1
  }
}