Pith Number

pith:FZJSMP4E

pith:2009:FZJSMP4EVJXEWBFGEHK2FAMLUL

not attested not anchored not stored refs pending

Optical properties of BaFe$_{2-x}$Co$_x$As$_2$

A.B. Kuzmenko, D. van der Marel, E. van Heumen, M.S. Golden, S. de Jong, Y. Huang

arxiv:0912.0636 v1 · 2009-12-03 · cond-mat.supr-con · 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{FZJSMP4EVJXEWBFGEHK2FAMLUL}

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	2026-05-18T02:10:34.302472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e53263f84aa6e4b04a621d5a2818ba2e737f0b8e0c4fab15c7e2249a04e79fe

Aliases

arxiv: 0912.0636 · arxiv_version: 0912.0636v1 · doi: 10.48550/arxiv.0912.0636 · pith_short_12: FZJSMP4EVJXE · pith_short_16: FZJSMP4EVJXEWBFG · pith_short_8: FZJSMP4E

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/FZJSMP4EVJXEWBFGEHK2FAMLUL \
  | 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: 2e53263f84aa6e4b04a621d5a2818ba2e737f0b8e0c4fab15c7e2249a04e79fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51cdf02e2023c33847108de0309320d5a3117efd43e8669da2cbeebaca81d447",
    "cross_cats_sorted": [
      "cond-mat.str-el"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2009-12-03T12:13:03Z",
    "title_canon_sha256": "6d85de8ac560c79248718e2183596fb87e12c89729bb843a2fd484800f3b501b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.0636",
    "kind": "arxiv",
    "version": 1
  }
}