Pith Number

pith:XEDFCQRU

pith:2015:XEDFCQRUI6YIJZRWB7PYR4IUQ6

not attested not anchored not stored refs pending

Fast Approximate Computations with Cauchy Matrices and Polynomials

Victor Y. Pan

arxiv:1506.02285 v3 · 2015-06-07 · 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{XEDFCQRUI6YIJZRWB7PYR4IUQ6}

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	2026-05-18T00:46:16.960591Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b90651423447b084e6360fdf88f11487bf11bb1e24403520767d85ac0f5cdab0

Aliases

arxiv: 1506.02285 · arxiv_version: 1506.02285v3 · doi: 10.48550/arxiv.1506.02285 · pith_short_12: XEDFCQRUI6YI · pith_short_16: XEDFCQRUI6YIJZRW · pith_short_8: XEDFCQRU

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/XEDFCQRUI6YIJZRWB7PYR4IUQ6 \
  | 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: b90651423447b084e6360fdf88f11487bf11bb1e24403520767d85ac0f5cdab0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ecb95a2098d4fcaed33b81ad0d27c7644d47089ce56fdbad9c6eb71b2b7892a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-06-07T16:24:13Z",
    "title_canon_sha256": "de38d66dc1f1b9640e0e71305fc7bd67740ad9f18aa48775df3147c2f80fd060"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.02285",
    "kind": "arxiv",
    "version": 3
  }
}