Pith Number

pith:OAFZCOKU

pith:1999:OAFZCOKUTULNKHPUTH6UDLJAUR

not attested not anchored not stored refs pending

Hubbard Fermi surface in the doped paramagnetic insulator

C. Groeber, M. G. Zacher, R. Eder

arxiv:cond-mat/9902015 v1 · 1999-02-01 · 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{OAFZCOKUTULNKHPUTH6UDLJAUR}

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	2026-07-04T14:23:29.680881Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

700b9139549d16d51df499fd41ad20a4450f7b97cc1d9523100e2e32cb7fdd88

Aliases

arxiv: cond-mat/9902015 · arxiv_version: cond-mat/9902015v1 · doi: 10.48550/arxiv.cond-mat/9902015 · pith_short_12: OAFZCOKUTULN · pith_short_16: OAFZCOKUTULNKHPU · pith_short_8: OAFZCOKU

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/OAFZCOKUTULNKHPUTH6UDLJAUR \
  | 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: 700b9139549d16d51df499fd41ad20a4450f7b97cc1d9523100e2e32cb7fdd88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0240dda9bb51f14176ed5e3ac9f4e064b568fc272b61c571965c8ef8033657e6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "1999-02-01T16:15:13Z",
    "title_canon_sha256": "4cfe5f9b23873ba11ad1dd34c63266a2f9305b6b450222c2f4b7e316bb4f3dce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/9902015",
    "kind": "arxiv",
    "version": 1
  }
}