Pith Number

pith:2OWFNBPE

pith:2011:2OWFNBPEFIQUFPBPY5HSQDSTBL

not attested not anchored not stored refs pending

Can we always get the entanglement entropy from the Kadanoff-Baym equations? The case of the T-matrix approximation

C.-O. Almbladh, C. Verdozzi, M. Puig von Friesen

arxiv:1103.4054 v1 · 2011-03-21 · cond-mat.mes-hall · cond-mat.quant-gas · 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{2OWFNBPEFIQUFPBPY5HSQDSTBL}

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	2026-05-18T02:02:48.727201Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3ac5685e42a2142bc2fc74f280e530ad4bf4ef793231ba9abdd60a4815aedea

Aliases

arxiv: 1103.4054 · arxiv_version: 1103.4054v1 · doi: 10.48550/arxiv.1103.4054 · pith_short_12: 2OWFNBPEFIQU · pith_short_16: 2OWFNBPEFIQUFPBP · pith_short_8: 2OWFNBPE

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/2OWFNBPEFIQUFPBPY5HSQDSTBL \
  | 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: d3ac5685e42a2142bc2fc74f280e530ad4bf4ef793231ba9abdd60a4815aedea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "351a16217436432b98b590cbbc71a9573ca249d48d341423f33e84467f1cbea9",
    "cross_cats_sorted": [
      "cond-mat.quant-gas",
      "cond-mat.str-el"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2011-03-21T15:31:37Z",
    "title_canon_sha256": "9eb0e829146e01762038990d399405de6f417d017a7cc689bb5730ddd6e917e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.4054",
    "kind": "arxiv",
    "version": 1
  }
}