Pith Number

pith:TGZFQDAI

pith:1999:TGZFQDAIQ2LGNQ7HE3HIXPHFDJ

not attested not anchored not stored refs pending

Extended bound states of fermions on 2D square lattice beyond the nn hopping and interactions

Maciej Bak, Roman Micnas

arxiv:cond-mat/9909089 v3 · 1999-09-06 · 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{TGZFQDAIQ2LGNQ7HE3HIXPHFDJ}

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	2026-07-05T01:43:47.525732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99b2580c08869666c3e726ce8bbce51a6b5988374b0b94ed2ea17d44cd40bc51

Aliases

arxiv: cond-mat/9909089 · arxiv_version: cond-mat/9909089v3 · doi: 10.48550/arxiv.cond-mat/9909089 · pith_short_12: TGZFQDAIQ2LG · pith_short_16: TGZFQDAIQ2LGNQ7H · pith_short_8: TGZFQDAI

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/TGZFQDAIQ2LGNQ7HE3HIXPHFDJ \
  | 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: 99b2580c08869666c3e726ce8bbce51a6b5988374b0b94ed2ea17d44cd40bc51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d927a72f5a2a6d32fad3708b648a6b72d9d864eac923722c219ec9b9495b0d2d",
    "cross_cats_sorted": [
      "cond-mat.str-el"
    ],
    "license": "",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "1999-09-06T17:33:17Z",
    "title_canon_sha256": "5a192b188cb7bb6968a337c38b20d9d599e4df3685b9091d8a26c9644d73a4b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cond-mat/9909089",
    "kind": "arxiv",
    "version": 3
  }
}