Pith Number

pith:HYYNRPDA

pith:2015:HYYNRPDACAP6TVFPZ773ZIX7HE

not attested not anchored not stored refs pending

Hierarchical bases preconditioner to enhance convergence of the CFIE with multiscale meshes

Alessandro Mori, Francesca Vipiana, Giuseppe Vecchi, Iulia Martina Bulai, Marco Righero, Matteo Alessandro Francavilla, Mauro Bandinelli, Mirko Bercigli

arxiv:1509.02792 v1 · 2015-09-09 · 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{HYYNRPDACAP6TVFPZ773ZIX7HE}

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	2026-05-18T00:54:41.415337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e30d8bc60101fe9d4afcfffbca2ff3927cc1cdae9f7708062c213d2a0167fee

Aliases

arxiv: 1509.02792 · arxiv_version: 1509.02792v1 · doi: 10.48550/arxiv.1509.02792 · pith_short_12: HYYNRPDACAP6 · pith_short_16: HYYNRPDACAP6TVFP · pith_short_8: HYYNRPDA

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/HYYNRPDACAP6TVFPZ773ZIX7HE \
  | 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: 3e30d8bc60101fe9d4afcfffbca2ff3927cc1cdae9f7708062c213d2a0167fee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76ec2f641e84e060b158585ba208091bae5b7cdb226cbe91ecb18534c762f2da",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-09-09T14:45:08Z",
    "title_canon_sha256": "f8f68f856b5e8bf60f2cae4f674bdcf666fc8c5b155bda2d45207e8a60891ce8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.02792",
    "kind": "arxiv",
    "version": 1
  }
}