Pith Number

pith:Z4HPW2TN

pith:2009:Z4HPW2TNS77V3CCQ4ELGTZ6AC6

not attested not anchored not stored refs pending

New insight into the physics of iron pnictides from optical and penetration depth data

B. B\"uchner, D. Johrendt, F. Roth, G. Behr, G. Fuchs, H-H. Klauss, H. Rosner, J. Malek, K. Koepernik, M. Grobosch, M. Knupfer, M. Rotter, R. Schuster, S. Elgazzar, S.-L. Drechsler

arxiv:0904.0827 v1 · 2009-04-06 · cond-mat.supr-con

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z4HPW2TNS77V3CCQ4ELGTZ6AC6}

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	2026-05-18T02:14:07.386151Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf0efb6a6d97ff5d8850e11669e7c017ad317e0d26e86682d70d181b8fa4f2ef

Aliases

arxiv: 0904.0827 · arxiv_version: 0904.0827v1 · doi: 10.48550/arxiv.0904.0827 · pith_short_12: Z4HPW2TNS77V · pith_short_16: Z4HPW2TNS77V3CCQ · pith_short_8: Z4HPW2TN

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/Z4HPW2TNS77V3CCQ4ELGTZ6AC6 \
  | 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: cf0efb6a6d97ff5d8850e11669e7c017ad317e0d26e86682d70d181b8fa4f2ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11b48288bdaa4d5955ab23db2db8bac5e072dac667f2a72ff538eeb39d0a26ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2009-04-06T00:29:40Z",
    "title_canon_sha256": "b22d637e1497cb2e2ccd7ac79d76ecb277c9ea0c5d5a8ec271a43699dce26152"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0827",
    "kind": "arxiv",
    "version": 1
  }
}