Pith Number

pith:FFEQIPGS

pith:2008:FFEQIPGSEKQFFFRWUAZ4ENZWUK

not attested not anchored not stored refs pending

Transport properties and superconductivity in $Ba_{1-x}M_xFe_2As_2$ (M=La and K) with double FeAs layers

D. F. Fang, G. Wu, H. Chen, J. J. Ying, R. H. Liu, T. Wu, X. F. Wang, X. H. Chen, Y. J. Yan, Y. L. Xie

arxiv:0806.1459 v1 · 2008-06-09 · 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{FFEQIPGSEKQFFFRWUAZ4ENZWUK}

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	2026-07-04T17:11:11.819075Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2949043cd222a0529636a033c23736a29a34c4974ffaf3963558eb0134015265

Aliases

arxiv: 0806.1459 · arxiv_version: 0806.1459v1 · doi: 10.48550/arxiv.0806.1459 · pith_short_12: FFEQIPGSEKQF · pith_short_16: FFEQIPGSEKQFFFRW · pith_short_8: FFEQIPGS

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/FFEQIPGSEKQFFFRWUAZ4ENZWUK \
  | 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: 2949043cd222a0529636a033c23736a29a34c4974ffaf3963558eb0134015265

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "530f083231214f4774537f6e0206a6d3ac7f6a577f0aefd35362c051fcef517f",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2008-06-09T13:42:00Z",
    "title_canon_sha256": "ad8fd9c8ca4fc8ea532419a622ed962ba96b3fa20de3a7bfcecf637eac4d0eeb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.1459",
    "kind": "arxiv",
    "version": 1
  }
}