Pith Number

pith:Z6UZC6O7

pith:2017:Z6UZC6O7G2M5PW4TX7RERBNRVS

not attested not anchored not stored refs pending

Some transpose-free CG-like solvers for nonsymmetric ill-posed problems

Paolo Novati, Silvia Gazzola

arxiv:1709.03679 v1 · 2017-09-12 · 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{Z6UZC6O7G2M5PW4TX7RERBNRVS}

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	2026-05-18T00:35:29.819480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfa99179df3699d7db93bfe24885b1ac9d1edc196d3969a8ac10c927d074a82c

Aliases

arxiv: 1709.03679 · arxiv_version: 1709.03679v1 · doi: 10.48550/arxiv.1709.03679 · pith_short_12: Z6UZC6O7G2M5 · pith_short_16: Z6UZC6O7G2M5PW4T · pith_short_8: Z6UZC6O7

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/Z6UZC6O7G2M5PW4TX7RERBNRVS \
  | 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: cfa99179df3699d7db93bfe24885b1ac9d1edc196d3969a8ac10c927d074a82c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27d098d1281c0ce1d06add18f8eeda949e21065b7ab80767b79100ad8029802f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-09-12T03:39:23Z",
    "title_canon_sha256": "9292353bb0b00081aaee14a7c8d97d848defde336fd27acd931c1961ae276d13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.03679",
    "kind": "arxiv",
    "version": 1
  }
}