Pith Number

pith:7QY5ZGDU

pith:2010:7QY5ZGDUDUFSCXAZ3DTPWNPZMC

not attested not anchored not stored refs pending

The Puzzle of High Temperature Superconductivity in Layered Iron Pnictides and Chalcogenides

David C. Johnston

arxiv:1005.4392 v2 · 2010-05-24 · cond-mat.supr-con · cond-mat.mtrl-sci · cond-mat.str-el

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7QY5ZGDUDUFSCXAZ3DTPWNPZMC}

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	2026-05-18T02:23:56.178504Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc31dc98741d0b215c19d8e6fb35f96095abf2f78b4f5f2a17344f429f7f92b5

Aliases

arxiv: 1005.4392 · arxiv_version: 1005.4392v2 · doi: 10.48550/arxiv.1005.4392 · pith_short_12: 7QY5ZGDUDUFS · pith_short_16: 7QY5ZGDUDUFSCXAZ · pith_short_8: 7QY5ZGDU

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/7QY5ZGDUDUFSCXAZ3DTPWNPZMC \
  | 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: fc31dc98741d0b215c19d8e6fb35f96095abf2f78b4f5f2a17344f429f7f92b5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7a9fa8f7ad8471ada834b26af3ba825b57131ff6d28d339d769ba3726dd664a",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci",
      "cond-mat.str-el"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2010-05-24T18:24:00Z",
    "title_canon_sha256": "d8ceff29cc30fd7f72747511aef1a77c8f6c3b3c236660f11469fe22be6b9313"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.4392",
    "kind": "arxiv",
    "version": 2
  }
}