Pith Number

pith:FJDBTW3L

pith:2009:FJDBTW3LJVKSKTZHSBRTUHKX4U

not attested not anchored not stored refs pending

Phonon spectra in CaFe2As2 and Ca0.6Na0.4Fe2As2: Measurement of the pressure and temperature dependence and comparison with ab-initio and shell model calculations

D. Johrendt, H. Hosono, H. Schober, M. Johnson, M. Tegel, M. Zbiri, R. Mittal, S. L. Chaplot, S. Matsuishi, S. Rols, T. Chatterji, Th. Brueckel, Y. Su

arxiv:0902.4590 v1 · 2009-02-26 · cond-mat.supr-con · cond-mat.mtrl-sci

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FJDBTW3LJVKSKTZHSBRTUHKX4U}

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	2026-05-18T02:14:38.623464Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a4619db6b4d55254f2790633a1d57e521b3afabc5153ffa23f93a7bec03d86f

Aliases

arxiv: 0902.4590 · arxiv_version: 0902.4590v1 · doi: 10.48550/arxiv.0902.4590 · pith_short_12: FJDBTW3LJVKS · pith_short_16: FJDBTW3LJVKSKTZH · pith_short_8: FJDBTW3L

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/FJDBTW3LJVKSKTZHSBRTUHKX4U \
  | 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: 2a4619db6b4d55254f2790633a1d57e521b3afabc5153ffa23f93a7bec03d86f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a24ea7cabed6c14fb3ca7148b785fd4c09e192eade2253860ffe297a2a02d915",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2009-02-26T13:55:51Z",
    "title_canon_sha256": "073a4a32617d8b1b85b210637c2ec6485b1379991993a1fbec54f2a505e6d3ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.4590",
    "kind": "arxiv",
    "version": 1
  }
}