Pith Number

pith:MXERL2OH

pith:2013:MXERL2OH74LODXAB65Q7UT23UG

not attested not anchored not stored refs pending

Deriving Stellar Effective Temperatures of Metal-Poor Stars with the Excitation Potential Method

Andrew R. Casey (ANU), Anna Frebel (MIT), Heather R. Jacobson (MIT), Qinsi Yu (MIT)

arxiv:1304.2396 v1 · 2013-04-08 · astro-ph.GA · 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{MXERL2OH74LODXAB65Q7UT23UG}

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	2026-05-18T01:50:41.448431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65c915e9c7ff16e1dc01f761fa4f5ba1a632fc7f8bbcde09fc386c9eeac4c2d3

Aliases

arxiv: 1304.2396 · arxiv_version: 1304.2396v1 · doi: 10.48550/arxiv.1304.2396 · pith_short_12: MXERL2OH74LO · pith_short_16: MXERL2OH74LODXAB · pith_short_8: MXERL2OH

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/MXERL2OH74LODXAB65Q7UT23UG \
  | 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: 65c915e9c7ff16e1dc01f761fa4f5ba1a632fc7f8bbcde09fc386c9eeac4c2d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8718e186ecf352286d557a69db666b22721eba1c599087ca2693e128fb15b1a5",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-04-08T20:00:02Z",
    "title_canon_sha256": "5d8b81c323983e1f303287b03eed1b0ba4edc1b4386082d2bf1ec99d3267130e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.2396",
    "kind": "arxiv",
    "version": 1
  }
}