Pith Number

pith:OKFZE7VJ

pith:2019:OKFZE7VJO5U4D7DBZS7VUJHCIX

not attested not anchored not stored refs pending

On the iron ionization balance of cool stars

D. T. Andreasen, E. Delgado-Mena, M. Tsantaki, N. C. Santos, S. G. Sousa, V. Adibekyan

arxiv:1902.06769 v1 · 2019-02-18 · 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{OKFZE7VJO5U4D7DBZS7VUJHCIX}

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	2026-05-17T23:52:45.303678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

728b927ea97769c1fc61ccbf5a24e245c673676f4097a9c46f6a8e60f6be7dc6

Aliases

arxiv: 1902.06769 · arxiv_version: 1902.06769v1 · doi: 10.48550/arxiv.1902.06769 · pith_short_12: OKFZE7VJO5U4 · pith_short_16: OKFZE7VJO5U4D7DB · pith_short_8: OKFZE7VJ

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/OKFZE7VJO5U4D7DBZS7VUJHCIX \
  | 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: 728b927ea97769c1fc61ccbf5a24e245c673676f4097a9c46f6a8e60f6be7dc6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "766400385d5b0786a1e42cd7448e17421d7258951a15901ba21d66220dd76e5f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-02-18T19:20:18Z",
    "title_canon_sha256": "a74a05070d4bd2030a1041289967267c1de434858affd7a7ea43918f3017d9af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.06769",
    "kind": "arxiv",
    "version": 1
  }
}