Pith Number

pith:V7PJNAHG

pith:1997:V7PJNAHGBJZ5HFKQP7JVUIX3ZA

not attested not anchored not stored refs pending

The Hubbard model in the two-pole approximation

(2) Joint Institute for Nuclear Research), A. Avella (1), D. Villani (1), F. Mancini (1), L. Siurakshina (2), V.Yu. Yushankhai (2) ((1) Universita' di Salerno

arxiv:cond-mat/9708009 v2 · 1997-08-01 · 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{V7PJNAHGBJZ5HFKQP7JVUIX3ZA}

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	2026-07-04T15:07:43.477806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

afde9680e60a73d395507fd35a22fbc80c3218528c6b4874528ae9cf177b5740

Aliases

arxiv: cond-mat/9708009 · arxiv_version: cond-mat/9708009v2 · doi: 10.48550/arxiv.cond-mat/9708009 · pith_short_12: V7PJNAHGBJZ5 · pith_short_16: V7PJNAHGBJZ5HFKQ · pith_short_8: V7PJNAHG

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/V7PJNAHGBJZ5HFKQP7JVUIX3ZA \
  | 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: afde9680e60a73d395507fd35a22fbc80c3218528c6b4874528ae9cf177b5740

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a21dba4a43cf674302ac1ac79b99c8be03fc5d6b13ab281bd37b48ea448568d5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "1997-08-01T15:01:52Z",
    "title_canon_sha256": "6f10ee6dac799e77cceb33888539d6bec604f8e5c135f19f2a479b07dcfd60a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/9708009",
    "kind": "arxiv",
    "version": 2
  }
}