Pith Number

pith:QK5ERXXP

pith:2018:QK5ERXXPPUHACCJYPKRXH4DCKW

not attested not anchored not stored refs pending

Equivalence between the Arqu\`es-Walsh sequence formula and the number of connected Feynman diagrams for every perturbation order in the fermionic many-body problem

Erick Castro

arxiv:1804.02110 v1 · 2018-04-06 · math-ph · cond-mat.quant-gas · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QK5ERXXPPUHACCJYPKRXH4DCKW}

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	2026-05-18T00:06:31.549859Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82ba48deef7d0e0109387aa373f06255bb22dcdea74c8f8a27e26e282ac4921c

Aliases

arxiv: 1804.02110 · arxiv_version: 1804.02110v1 · doi: 10.48550/arxiv.1804.02110 · pith_short_12: QK5ERXXPPUHA · pith_short_16: QK5ERXXPPUHACCJY · pith_short_8: QK5ERXXP

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/QK5ERXXPPUHACCJYPKRXH4DCKW \
  | 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: 82ba48deef7d0e0109387aa373f06255bb22dcdea74c8f8a27e26e282ac4921c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8bcce5711e226d0968d18081b85e1c580160a7a37b3960eeff15a22b6d698b19",
    "cross_cats_sorted": [
      "cond-mat.quant-gas",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2018-04-06T02:07:23Z",
    "title_canon_sha256": "2fa56f65b035ed83d964bc455087a041f592ec732da3a2324d7c47aeba26de06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.02110",
    "kind": "arxiv",
    "version": 1
  }
}