Pith Number

pith:URBLGD4X

pith:2019:URBLGD4XDAE77NRZURLBYE6TTS

not attested not anchored not stored refs pending

The Role of Energy Minimization in Algebraic Multigrid Interpolation

Ben S. Southworth, Jacob B. Schroder, James Brannick, Scott P. MacLachlan

arxiv:1902.05157 v1 · 2019-02-13 · 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{URBLGD4XDAE77NRZURLBYE6TTS}

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	2026-05-17T23:54:01.764027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a442b30f971809ffb639a4561c13d39cac15daa112eafe91d453047534031ed4

Aliases

arxiv: 1902.05157 · arxiv_version: 1902.05157v1 · doi: 10.48550/arxiv.1902.05157 · pith_short_12: URBLGD4XDAE7 · pith_short_16: URBLGD4XDAE77NRZ · pith_short_8: URBLGD4X

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/URBLGD4XDAE77NRZURLBYE6TTS \
  | 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: a442b30f971809ffb639a4561c13d39cac15daa112eafe91d453047534031ed4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "209e644cc27299594f769817280638f71b312ee23a3ef30f5eeee7137fe8bdcd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-02-13T23:13:53Z",
    "title_canon_sha256": "451b349879632ea60f5674e7f9239bacf9e39c8aeb33e1426a05378d50750c31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05157",
    "kind": "arxiv",
    "version": 1
  }
}