Pith Number

pith:KR27IHMU

pith:2011:KR27IHMUIAD4Q2NJQQIG2T2XOL

not attested not anchored not stored refs pending

Effective Stiffness: Generalizing Effective Resistance Sampling to Finite Element Matrices

Haim Avron, Sivan Toledo

arxiv:1110.4437 v2 · 2011-10-20 · cs.NA · cs.DS

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KR27IHMUIAD4Q2NJQQIG2T2XOL}

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	2026-05-18T02:21:35.175950Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5475f41d944007c869a984106d4f5772c5d194b4147d2fecb2dbb68a2b9e4274

Aliases

arxiv: 1110.4437 · arxiv_version: 1110.4437v2 · doi: 10.48550/arxiv.1110.4437 · pith_short_12: KR27IHMUIAD4 · pith_short_16: KR27IHMUIAD4Q2NJ · pith_short_8: KR27IHMU

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/KR27IHMUIAD4Q2NJQQIG2T2XOL \
  | 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: 5475f41d944007c869a984106d4f5772c5d194b4147d2fecb2dbb68a2b9e4274

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "178bf69598a1cf6d9848e65720700e5b6118b20654f88cac94b3cd28541adec6",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2011-10-20T03:54:53Z",
    "title_canon_sha256": "a340f99156b4b261e5bcafd4574605bc5c54d6e5d56d776cd106add2104381a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.4437",
    "kind": "arxiv",
    "version": 2
  }
}