Pith Number

pith:BVFUE2DK

pith:2012:BVFUE2DKBEPKNN3BGII6EEMYGF

not attested not anchored not stored refs pending

Accurate simulations of planar topological codes cannot use cyclic boundaries

Austin G. Fowler

arxiv:1209.3539 v2 · 2012-09-17 · quant-ph · cond-mat.other

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BVFUE2DKBEPKNN3BGII6EEMYGF}

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	2026-05-18T03:20:35.510412Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d4b42686a091ea6b7613211e211983153965598b896a0c5251ff12ef46c35fb

Aliases

arxiv: 1209.3539 · arxiv_version: 1209.3539v2 · doi: 10.48550/arxiv.1209.3539 · pith_short_12: BVFUE2DKBEPK · pith_short_16: BVFUE2DKBEPKNN3B · pith_short_8: BVFUE2DK

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/BVFUE2DKBEPKNN3BGII6EEMYGF \
  | 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: 0d4b42686a091ea6b7613211e211983153965598b896a0c5251ff12ef46c35fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fcf27a580377983ffd89204c15d5601aabf7aabcaefd6744f9b98bdbb49369db",
    "cross_cats_sorted": [
      "cond-mat.other"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-09-17T01:39:25Z",
    "title_canon_sha256": "e9c00e44cdd46c68c4bb0950ab96e23b91983a0fadbe5c17d3e2ac6ffe0b3d12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.3539",
    "kind": "arxiv",
    "version": 2
  }
}