Pith Number

pith:DXOEARGS

pith:2015:DXOEARGS2M5NM3TDEUNZU6QP2C

not attested not anchored not stored refs pending

Analysis of a Classical Matrix Preconditioning Algorithm

Alistair Sinclair, Leonard J. Schulman

arxiv:1504.03026 v2 · 2015-04-12 · cs.DS · cs.NA · 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{DXOEARGS2M5NM3TDEUNZU6QP2C}

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	2026-05-18T01:49:55.585407Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ddc4044d2d33ad66e63251b9a7a0fd0987ab7143eb27bc2c604ccf6e49c890b

Aliases

arxiv: 1504.03026 · arxiv_version: 1504.03026v2 · doi: 10.48550/arxiv.1504.03026 · pith_short_12: DXOEARGS2M5N · pith_short_16: DXOEARGS2M5NM3TD · pith_short_8: DXOEARGS

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/DXOEARGS2M5NM3TDEUNZU6QP2C \
  | 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: 1ddc4044d2d33ad66e63251b9a7a0fd0987ab7143eb27bc2c604ccf6e49c890b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b0ae30df0299e372189703b2329873d49be6a266f50fe2dace5a0f932ce7b81a",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-04-12T21:30:05Z",
    "title_canon_sha256": "14fcf3ae126d21ced42d5c9de4d6bdf9b832c46a7c6ce3fbfacb2590da2c6ec7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03026",
    "kind": "arxiv",
    "version": 2
  }
}