Pith Number

pith:OBRCQA6U

pith:2009:OBRCQA6UHEOV26JUNUZ4OZ2ADD

not attested not anchored not stored refs pending

Upper critical field measurements up to 60 T in arsenic-deficient LaO_(0.9)F_(0.1)FeAs_(1-delta): Pauli limiting behaviour at high fields vs improved superconductivity at low fields

B. Buechner, G. Behr, G. Fuchs, J. Freudenberger, J. Wosnitza, K. Nenkov, L. Schultz, M. Bartkowiak, N. Kozlova, S.-L. Drechsler

arxiv:0905.4917 v1 · 2009-05-29 · cond-mat.supr-con · cond-mat.dis-nn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OBRCQA6UHEOV26JUNUZ4OZ2ADD}

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	2026-05-18T02:13:30.651495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70622803d4391d5d79346d33c7674018fc36589944658fdcb7ebf06b9a53bdb1

Aliases

arxiv: 0905.4917 · arxiv_version: 0905.4917v1 · doi: 10.48550/arxiv.0905.4917 · pith_short_12: OBRCQA6UHEOV · pith_short_16: OBRCQA6UHEOV26JU · pith_short_8: OBRCQA6U

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/OBRCQA6UHEOV26JUNUZ4OZ2ADD \
  | 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: 70622803d4391d5d79346d33c7674018fc36589944658fdcb7ebf06b9a53bdb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0feaba468d1d2c22bb0bb0aefc21c816e2801921c3ef93ff4a873dc124a978a",
    "cross_cats_sorted": [
      "cond-mat.dis-nn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2009-05-29T16:57:45Z",
    "title_canon_sha256": "74bdcc48f7535d123020d4c1450b43eb2c7aae126fdb31a034ada68d8fe1282a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.4917",
    "kind": "arxiv",
    "version": 1
  }
}