Pith Number

pith:HGUPQPHT

pith:2019:HGUPQPHTJ3EKY32EPI3U4ZDSA4

not attested not anchored not stored refs pending

Ground state and low-energy excitations of the Kitaev-Heisenberg ladder

Cli\`o Efthimia Agrapidis, Jeroen van den Brink, Satoshi Nishimoto

arxiv:1902.00466 v1 · 2019-02-01 · 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{HGUPQPHTJ3EKY32EPI3U4ZDSA4}

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	2026-05-17T23:43:03.554662Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39a8f83cf34ec8ac6f447a374e647207260b305670e5aa305e19289824a082c5

Aliases

arxiv: 1902.00466 · arxiv_version: 1902.00466v1 · doi: 10.48550/arxiv.1902.00466 · pith_short_12: HGUPQPHTJ3EK · pith_short_16: HGUPQPHTJ3EKY32E · pith_short_8: HGUPQPHT

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/HGUPQPHTJ3EKY32EPI3U4ZDSA4 \
  | 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: 39a8f83cf34ec8ac6f447a374e647207260b305670e5aa305e19289824a082c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ac896a09d08a8bb75fec4a7ecfeeac2e65da2f970599977f11f104e167a3a2c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2019-02-01T17:34:14Z",
    "title_canon_sha256": "cf2893baf00fb092ade294466335a06c009a214c10de559cf5f1a96392ff8694"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.00466",
    "kind": "arxiv",
    "version": 1
  }
}