Pith Number

pith:A3MDGD2H

pith:2018:A3MDGD2H4FNJEFK5HVPSJGU7LO

not attested not anchored not stored refs pending

Finite-temperature entanglement negativity of free fermions

Hassan Shapourian, Shinsei Ryu

arxiv:1807.09808 v2 · 2018-07-25 · cond-mat.stat-mech · cond-mat.str-el · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{A3MDGD2H4FNJEFK5HVPSJGU7LO}

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	2026-05-17T23:43:51.032819Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06d8330f47e15a92155d3d5f249a9f5bab7db8aacfc6b45bafbb4ae1aef8762d

Aliases

arxiv: 1807.09808 · arxiv_version: 1807.09808v2 · doi: 10.48550/arxiv.1807.09808 · pith_short_12: A3MDGD2H4FNJ · pith_short_16: A3MDGD2H4FNJEFK5 · pith_short_8: A3MDGD2H

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/A3MDGD2H4FNJEFK5HVPSJGU7LO \
  | 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: 06d8330f47e15a92155d3d5f249a9f5bab7db8aacfc6b45bafbb4ae1aef8762d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7e215e21bc330d6e0a1d5ef2dafcefc16121a2f538adab5d3a6e84fa5279e04",
    "cross_cats_sorted": [
      "cond-mat.str-el",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2018-07-25T18:19:08Z",
    "title_canon_sha256": "0788fdc8eecfc917e63b349d78aaef2899de1911a8b5d282de0cfb55427cee4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.09808",
    "kind": "arxiv",
    "version": 2
  }
}