Pith Number

pith:CZMHDK3W

pith:2014:CZMHDK3WBQ33MHVWMJS3545OZL

not attested not anchored not stored refs pending

Symmetric QR Algorithm with Permutations

Aravindh Krishnamoorthy

arxiv:1402.5086 v1 · 2014-02-20 · cs.NA · cs.MS · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CZMHDK3WBQ33MHVWMJS3545OZL}

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	2026-05-18T02:58:31.219240Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

165871ab760c37b61eb66265bef3aecacf90192e2bd6d3811b9f6018598ef658

Aliases

arxiv: 1402.5086 · arxiv_version: 1402.5086v1 · doi: 10.48550/arxiv.1402.5086 · pith_short_12: CZMHDK3WBQ33 · pith_short_16: CZMHDK3WBQ33MHVW · pith_short_8: CZMHDK3W

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/CZMHDK3WBQ33MHVWMJS3545OZL \
  | 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: 165871ab760c37b61eb66265bef3aecacf90192e2bd6d3811b9f6018598ef658

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "660490e62e77635c16e077d67a4500928fba4e980c473933f6a844c3d576465f",
    "cross_cats_sorted": [
      "cs.MS",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2014-02-20T17:34:49Z",
    "title_canon_sha256": "601213267e6574a35eeb299f25779bf4db0fd7afbff0cfd2581a8bf7aebe680b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.5086",
    "kind": "arxiv",
    "version": 1
  }
}