Pith Number

pith:FCAQQYCY

pith:2010:FCAQQYCYYFUVZNQFS72OCSF3CB

not attested not anchored not stored refs pending

Topological phases of fermions in one dimension

Alexei Kitaev, Lukasz Fidkowski

arxiv:1008.4138 v2 · 2010-08-24 · 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{FCAQQYCYYFUVZNQFS72OCSF3CB}

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.

Cited by

1 paper in Pith

What's Done Cannot Be Undone: TASI Lectures on Non-Invertible Symmetries

Receipt and verification

First computed	2026-05-18T03:23:47.789006Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2881086058c1695cb60597f4e148bb1045a74c43e807800c4f9abeee10999d22

Aliases

arxiv: 1008.4138 · arxiv_version: 1008.4138v2 · doi: 10.48550/arxiv.1008.4138 · pith_short_12: FCAQQYCYYFUV · pith_short_16: FCAQQYCYYFUVZNQF · pith_short_8: FCAQQYCY

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/FCAQQYCYYFUVZNQFS72OCSF3CB \
  | 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: 2881086058c1695cb60597f4e148bb1045a74c43e807800c4f9abeee10999d22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e181f79420be41a90c1e0aca0b9312c6be7c62587c0cd00bc5372300e99c0268",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2010-08-24T20:00:59Z",
    "title_canon_sha256": "27a08d8e84ff8b762db62b3e42e7f9b94a0ed760e76f60162cf3c609da280e1b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.4138",
    "kind": "arxiv",
    "version": 2
  }
}