Pith Number

pith:QNPJIWC4

pith:2020:QNPJIWC4P6V5EGUIGE5M3JS7ZB

not attested not anchored not stored refs pending

A systematic method for Schrieffer-Wolff transformation and its generalizations

Keshav Singh, Rukhsan Ul Haq

arxiv:2004.06534 v1 · 2020-04-13 · 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{QNPJIWC4P6V5EGUIGE5M3JS7ZB}

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	2026-07-05T00:54:52.907515Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

835e94585c7fabd21a88313acda65fc87a23a5c4cf2885fb06c933204469eb62

Aliases

arxiv: 2004.06534 · arxiv_version: 2004.06534v1 · doi: 10.48550/arxiv.2004.06534 · pith_short_12: QNPJIWC4P6V5 · pith_short_16: QNPJIWC4P6V5EGUI · pith_short_8: QNPJIWC4

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/QNPJIWC4P6V5EGUIGE5M3JS7ZB \
  | 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: 835e94585c7fabd21a88313acda65fc87a23a5c4cf2885fb06c933204469eb62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1d89ef2809c9e33ad601c3133c79ac44286bb6d2362cdffcd4fe28f1fc8b5b9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2020-04-13T16:17:06Z",
    "title_canon_sha256": "638ee3ab4ce2db99f4315a1340d997ca9d0636ca60e52a1a2834ae0f0a393ff9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.06534",
    "kind": "arxiv",
    "version": 1
  }
}