Pith Number

pith:L47BUPSK

pith:2012:L47BUPSKZ7RQQTDVN75VXGRBYB

not attested not anchored not stored refs pending

Efficient Computation of the Permanent of Block Factorizable Matrices

Kristan Temme, Pawel Wocjan

arxiv:1208.6589 v1 · 2012-08-31 · cs.DM · cs.DS · 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{L47BUPSKZ7RQQTDVN75VXGRBYB}

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	2026-05-18T03:46:32.308187Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f3e1a3e4acfe3084c756ffb5b9a21c0647598fd0c8cbef87b98338fae69f398

Aliases

arxiv: 1208.6589 · arxiv_version: 1208.6589v1 · doi: 10.48550/arxiv.1208.6589 · pith_short_12: L47BUPSKZ7RQ · pith_short_16: L47BUPSKZ7RQQTDV · pith_short_8: L47BUPSK

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/L47BUPSKZ7RQQTDVN75VXGRBYB \
  | 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: 5f3e1a3e4acfe3084c756ffb5b9a21c0647598fd0c8cbef87b98338fae69f398

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0770466717b2fd9d2332d24478f5e4968c76c74938bd2a1cf0b499e2452bf99",
    "cross_cats_sorted": [
      "cs.DS",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2012-08-31T19:43:43Z",
    "title_canon_sha256": "7f5467eac454bc3c619a1f60f97f4f2d14286f63ba54dd8a92556a88a3c8f7c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.6589",
    "kind": "arxiv",
    "version": 1
  }
}