Pith Number

pith:KWDU657A

pith:2013:KWDU657A6P3BSLSPZBVCLGCIKR

not attested not anchored not stored refs pending

Chemical signatures of planets: beyond solar-twins

I. Ramirez, J. Melendez, M. Asplund

arxiv:1310.8581 v1 · 2013-10-31 · 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{KWDU657A6P3BSLSPZBVCLGCIKR}

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	2026-05-18T01:46:40.376903Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55874f77e0f3f6192e4fc86a259848544f7c84a55cc89c11ffc4583c57e91e81

Aliases

arxiv: 1310.8581 · arxiv_version: 1310.8581v1 · doi: 10.48550/arxiv.1310.8581 · pith_short_12: KWDU657A6P3B · pith_short_16: KWDU657A6P3BSLSP · pith_short_8: KWDU657A

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/KWDU657A6P3BSLSPZBVCLGCIKR \
  | 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: 55874f77e0f3f6192e4fc86a259848544f7c84a55cc89c11ffc4583c57e91e81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7c570845dba68f48115a3561c640c45602e5feae924612abfd70a2bdc213f1f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-10-31T16:38:57Z",
    "title_canon_sha256": "7d155afcb4c698a6c0caede74932611038091119f1727a75181efe63e567306d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.8581",
    "kind": "arxiv",
    "version": 1
  }
}