Pith Number

pith:SIDGTID6

pith:2015:SIDGTID6NECAOCBPY7OLZEWCCU

not attested not anchored not stored refs pending

A Thick-Restart Lanczos algorithm with polynomial filtering for Hermitian eigenvalue problems

Chao Yang, Eugene Vecharynski, Ruipeng Li, Yousef Saad, Yuanzhe Xi

arxiv:1512.08135 v1 · 2015-12-26 · 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{SIDGTID6NECAOCBPY7OLZEWCCU}

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	2026-05-18T01:23:43.143343Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

920669a07e690407082fc7dcbc92c2151d55d9d9115848de06868741a730b78c

Aliases

arxiv: 1512.08135 · arxiv_version: 1512.08135v1 · doi: 10.48550/arxiv.1512.08135 · pith_short_12: SIDGTID6NECA · pith_short_16: SIDGTID6NECAOCBP · pith_short_8: SIDGTID6

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/SIDGTID6NECAOCBPY7OLZEWCCU \
  | 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: 920669a07e690407082fc7dcbc92c2151d55d9d9115848de06868741a730b78c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "101cdb5d378bf5b5d3dca30e9dfd9140064cf7a916c362dd5393fc30c802e20d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-12-26T19:43:26Z",
    "title_canon_sha256": "8eb483ebc21b82e6cbea08d80f6f9c5aa50c1de83ae0e18e2826a234deebd880"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.08135",
    "kind": "arxiv",
    "version": 1
  }
}