Pith Number

pith:XBHBRMNC

pith:2012:XBHBRMNC5KBGFNOKW6WLZF6VEH

not attested not anchored not stored refs pending

Geometries for universal quantum computation with matchgates

Daniel J. Brod, Ernesto F. Galv\~ao

arxiv:1207.2126 v2 · 2012-07-09 · 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{XBHBRMNC5KBGFNOKW6WLZF6VEH}

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	2026-05-18T03:41:21.317598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b84e18b1a2ea8262b5cab7acbc97d521d4c13dc7ce4d1dce874c75941998cae1

Aliases

arxiv: 1207.2126 · arxiv_version: 1207.2126v2 · doi: 10.48550/arxiv.1207.2126 · pith_short_12: XBHBRMNC5KBG · pith_short_16: XBHBRMNC5KBGFNOK · pith_short_8: XBHBRMNC

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/XBHBRMNC5KBGFNOKW6WLZF6VEH \
  | 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: b84e18b1a2ea8262b5cab7acbc97d521d4c13dc7ce4d1dce874c75941998cae1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "345a1efeaa3cb813f71b156e1eadf1afa441fe679d2d3d154942fa48a845e96f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-07-09T18:54:17Z",
    "title_canon_sha256": "6bb76ed62134f84261d6ac9c881c586c41b3d0720e7750de1c3a5e0285a1435e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.2126",
    "kind": "arxiv",
    "version": 2
  }
}