Pith Number

pith:FVZ3AYXJ

pith:2019:FVZ3AYXJBMP5XFO5MPE2NXEMZO

not attested not anchored not stored refs pending

Twisted and untwisted negativity spectrum of free fermions

Hassan Shapourian, Paola Ruggiero, Pasquale Calabrese, Shinsei Ryu

arxiv:1906.04211 v1 · 2019-06-10 · cond-mat.stat-mech · cond-mat.str-el · hep-th · quant-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FVZ3AYXJBMP5XFO5MPE2NXEMZO}

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

Entanglement of Inhomogeneous Free Bosons and Orthogonal Polynomials

Receipt and verification

First computed	2026-07-05T00:06:46.017410Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d73b062e90b1fdb95dd63c9a6dc8ccb9a35e7acdefe0b339b514924b22f4198

Aliases

arxiv: 1906.04211 · arxiv_version: 1906.04211v1 · doi: 10.48550/arxiv.1906.04211 · pith_short_12: FVZ3AYXJBMP5 · pith_short_16: FVZ3AYXJBMP5XFO5 · pith_short_8: FVZ3AYXJ

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/FVZ3AYXJBMP5XFO5MPE2NXEMZO \
  | 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: 2d73b062e90b1fdb95dd63c9a6dc8ccb9a35e7acdefe0b339b514924b22f4198

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "057a812c0f1de927d3f2843f42ed15f1a3a86c9e09d6eb008e4da24603a0eb43",
    "cross_cats_sorted": [
      "cond-mat.str-el",
      "hep-th",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2019-06-10T18:13:09Z",
    "title_canon_sha256": "6ae53095b9cec95d75f929c1fa03b4cb9be49cb0b6b6c57e3366e72c9dd3a207"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.04211",
    "kind": "arxiv",
    "version": 1
  }
}