Pith Number

pith:3T3ZKZCC

pith:2013:3T3ZKZCCFQWPMRZHXNTRXQOOD2

not attested not anchored not stored refs pending

Performance Evaluation of Block Diagonal Preconditioners for Divergence-Conforming B-Spline Discretization of Stokes Equations

Adriano M. A. Cortes, Alvaro L. G. A. Coutinho

arxiv:1309.5048 v1 · 2013-09-19 · 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{3T3ZKZCCFQWPMRZHXNTRXQOOD2}

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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	2026-05-18T03:12:48.966007Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dcf79564422c2cf64727bb671bc1ce1ebe1f62fab25a11b2c66334a0709e3800

Aliases

arxiv: 1309.5048 · arxiv_version: 1309.5048v1 · doi: 10.48550/arxiv.1309.5048 · pith_short_12: 3T3ZKZCCFQWP · pith_short_16: 3T3ZKZCCFQWPMRZH · pith_short_8: 3T3ZKZCC

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/3T3ZKZCCFQWPMRZHXNTRXQOOD2 \
  | 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: dcf79564422c2cf64727bb671bc1ce1ebe1f62fab25a11b2c66334a0709e3800

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a91ee8f15351d17b724c81b6c4831bc4ac04ca554d515c69907e8ed7d74130e5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-09-19T16:48:49Z",
    "title_canon_sha256": "307e6063e78e962867d7c4ead1375baf4ae7a76e86907ad176bd87669c1b2048"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.5048",
    "kind": "arxiv",
    "version": 1
  }
}