Pith Number

pith:PQDFXYFH

pith:2012:PQDFXYFHOWWZQEF24XJFRWEPR2

not attested not anchored not stored refs pending

Minimal instances for toric code ground states

Hans Peter B\"uchler, Nicolai Lang

arxiv:1206.6994 v1 · 2012-06-29 · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PQDFXYFHOWWZQEF24XJFRWEPR2}

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	2026-05-18T03:46:34.158752Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c065be0a775ad9810bae5d258d88f8e9bec9375c21eeffb3c0f1d89a756b40b

Aliases

arxiv: 1206.6994 · arxiv_version: 1206.6994v1 · doi: 10.48550/arxiv.1206.6994 · pith_short_12: PQDFXYFHOWWZ · pith_short_16: PQDFXYFHOWWZQEF2 · pith_short_8: PQDFXYFH

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/PQDFXYFHOWWZQEF24XJFRWEPR2 \
  | 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: 7c065be0a775ad9810bae5d258d88f8e9bec9375c21eeffb3c0f1d89a756b40b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69d007b7e69fc200ff075ede63c3e385f13f594c9c9e22920f72972f2805d6e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-06-29T12:13:25Z",
    "title_canon_sha256": "dc1b8375c33292b3ce4e3d8ac9fd473a1a08a48c31940eb7e98e8485c0b4be1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.6994",
    "kind": "arxiv",
    "version": 1
  }
}