Pith Number

pith:PAAJ3GHV

pith:2017:PAAJ3GHVCFTM75XCC6A6IJ4MZA

not attested not anchored not stored refs pending

Nonsymmetric Algebraic Multigrid Based on Local Approximate Ideal Restriction (lAIR)

Ben S. Southworth, John Ruge, Thomas A. Manteuffel

arxiv:1708.06065 v4 · 2017-08-21 · 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{PAAJ3GHVCFTM75XCC6A6IJ4MZA}

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	2026-05-17T23:52:24.681523Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78009d98f51166cff6e21781e4278cc83365a9b6f8a306e338539c5ad6bd7793

Aliases

arxiv: 1708.06065 · arxiv_version: 1708.06065v4 · doi: 10.48550/arxiv.1708.06065 · pith_short_12: PAAJ3GHVCFTM · pith_short_16: PAAJ3GHVCFTM75XC · pith_short_8: PAAJ3GHV

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/PAAJ3GHVCFTM75XCC6A6IJ4MZA \
  | 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: 78009d98f51166cff6e21781e4278cc83365a9b6f8a306e338539c5ad6bd7793

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a3a861df52b39e92a51fbec0adddba6035fd0a2001c408e07b1e27e613beb7d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-08-21T02:34:28Z",
    "title_canon_sha256": "4ab2763b1a881c2876e48dcd3d0b521d37f6cd901ce332a230d98bd51d4d709a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.06065",
    "kind": "arxiv",
    "version": 4
  }
}