Pith Number

pith:ZXM42WD3

pith:2004:ZXM42WD3SOR4MTK3VHY7ZNCFFN

not attested not anchored not stored refs pending

Electron Self-Energy and Generalized Drude Formula for Infrared Conductivity of Metals

Philip B. Allen

arxiv:cond-mat/0407777 v2 · 2004-07-29 · cond-mat.other · 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{ZXM42WD3SOR4MTK3VHY7ZNCFFN}

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	2026-05-18T01:35:05.408794Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdd9cd587b93a3c64d5ba9f1fcb4452b4915ec9b7fe18e1881f638d817d4c31a

Aliases

arxiv: cond-mat/0407777 · arxiv_version: cond-mat/0407777v2 · doi: 10.48550/arxiv.cond-mat/0407777 · pith_short_12: ZXM42WD3SOR4 · pith_short_16: ZXM42WD3SOR4MTK3 · pith_short_8: ZXM42WD3

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/ZXM42WD3SOR4MTK3VHY7ZNCFFN \
  | 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: cdd9cd587b93a3c64d5ba9f1fcb4452b4915ec9b7fe18e1881f638d817d4c31a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c26d646538c8ca99a4dfe7bbe0f93f0014d58fd6f9e146c3bedc193cc1de110c",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.other",
    "submitted_at": "2004-07-29T19:19:36Z",
    "title_canon_sha256": "c0439465db72ef974ff98f37b26840e46281d1f176e047f98dd5753591c63f5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/0407777",
    "kind": "arxiv",
    "version": 2
  }
}