Pith Number

pith:J7QN5F5U

pith:2013:J7QN5F5UE2CTYEZWTOVQUERCWP

not attested not anchored not stored refs pending

A Simple, Combinatorial Algorithm for Solving SDD Systems in Nearly-Linear Time

Aaron Sidford, Jonathan A. Kelner, Lorenzo Orecchia, Zeyuan Allen Zhu

arxiv:1301.6628 v1 · 2013-01-28 · cs.DS · cs.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{J7QN5F5UE2CTYEZWTOVQUERCWP}

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.

Cited by

1 paper in Pith

An Empirical Study of Conjugate Gradient Preconditioners for Solving Symmetric Positive Definite Systems of Linear Equations

Receipt and verification

First computed	2026-05-18T03:35:14.805177Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4fe0de97b426853c13369bab0a1222b3e42956cc4bc7db6db95266078f3a7db4

Aliases

arxiv: 1301.6628 · arxiv_version: 1301.6628v1 · doi: 10.48550/arxiv.1301.6628 · pith_short_12: J7QN5F5UE2CT · pith_short_16: J7QN5F5UE2CTYEZW · pith_short_8: J7QN5F5U

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/J7QN5F5UE2CTYEZWTOVQUERCWP \
  | 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: 4fe0de97b426853c13369bab0a1222b3e42956cc4bc7db6db95266078f3a7db4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f895f8c8724e75514289cbb3e23d2ce2764bea6a75cf72eceee90624ddfaffd4",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-01-28T18:06:21Z",
    "title_canon_sha256": "eb8e0f81ef3574f921091321264cfc526a3fa395429c20dffc3777936edb57f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.6628",
    "kind": "arxiv",
    "version": 1
  }
}