Pith Number

pith:MCE27X7A

pith:2009:MCE27X7A4APBUSJMQCO6N422DT

not attested not anchored not stored refs pending

Superconductivity in Undoped Single Crystals of BaFe2As2: Field and Current Dependence

E. G. Kim, G. R. Stewart, J. S. Kim, T. D. Blasius

arxiv:0907.4429 v1 · 2009-07-25 · 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{MCE27X7A4APBUSJMQCO6N422DT}

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	2026-05-18T02:12:53.593427Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6089afdfe0e01e1a492c809de6f35a1cdf25a825076a0c2b170a5cbdc1207eee

Aliases

arxiv: 0907.4429 · arxiv_version: 0907.4429v1 · doi: 10.48550/arxiv.0907.4429 · pith_short_12: MCE27X7A4APB · pith_short_16: MCE27X7A4APBUSJM · pith_short_8: MCE27X7A

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/MCE27X7A4APBUSJMQCO6N422DT \
  | 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: 6089afdfe0e01e1a492c809de6f35a1cdf25a825076a0c2b170a5cbdc1207eee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c1876b02608887d135ecc1a11f6e1b8e9496b2d414907cc00c7af003e6a09b4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2009-07-25T16:02:24Z",
    "title_canon_sha256": "766bd296997974352acbdccbf8132dd7e0311886a390569adc63bf31cc15fb12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.4429",
    "kind": "arxiv",
    "version": 1
  }
}