Pith Number

pith:EZET4JUZ

pith:2019:EZET4JUZ3672CLZMZ3L7HVZORO

not attested not anchored not stored refs pending

On Symbolic Approaches for Computing the Matrix Permanent

Aditya A. Shrotri, Moshe Y. Vardi, Supratik Chakraborty

arxiv:1908.03252 v1 · 2019-08-08 · cs.DS · cs.SC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EZET4JUZ3672CLZMZ3L7HVZORO}

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	2026-07-04T23:52:37.770956Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26493e2699dfbfa12f2cced7f3d72e8baf24e5504a70313415f732bb44a18ec9

Aliases

arxiv: 1908.03252 · arxiv_version: 1908.03252v1 · doi: 10.48550/arxiv.1908.03252 · pith_short_12: EZET4JUZ3672 · pith_short_16: EZET4JUZ3672CLZM · pith_short_8: EZET4JUZ

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/EZET4JUZ3672CLZMZ3L7HVZORO \
  | 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: 26493e2699dfbfa12f2cced7f3d72e8baf24e5504a70313415f732bb44a18ec9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "389ba8563e8ff14f795368e090c0fc5f3fef7900a154362abdb32a40844ed605",
    "cross_cats_sorted": [
      "cs.SC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-08-08T20:01:59Z",
    "title_canon_sha256": "4a58b49484ab8ea64e8080a8b73e53e55a2d2d19678c8f0f38834bb16dd5a737"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03252",
    "kind": "arxiv",
    "version": 1
  }
}