Pith Number

pith:Y7SRLGNG

pith:2019:Y7SRLGNGXOOUDEM76B7A7MNO7J

not attested not anchored not stored refs pending

A posteriori error estimation and adaptivity in stochastic Galerkin FEM for parametric elliptic PDEs: beyond the affine case

Alex Bespalov, Feng Xu

arxiv:1903.06520 v2 · 2019-03-15 · math.NA · cs.NA

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y7SRLGNGXOOUDEM76B7A7MNO7J}

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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.

Cited by

1 paper in Pith

T-IFISS: a toolbox for adaptive FEM computation

Receipt and verification

First computed	2026-07-05T01:07:49.133224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7e51599a6bb9d41919ff07e0fb1aefa5ca7b411701f36ebb2f2054c9836ac1c

Aliases

arxiv: 1903.06520 · arxiv_version: 1903.06520v2 · doi: 10.48550/arxiv.1903.06520 · pith_short_12: Y7SRLGNGXOOU · pith_short_16: Y7SRLGNGXOOUDEM7 · pith_short_8: Y7SRLGNG

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/Y7SRLGNGXOOUDEM76B7A7MNO7J \
  | 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: c7e51599a6bb9d41919ff07e0fb1aefa5ca7b411701f36ebb2f2054c9836ac1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f1c73a9d829b2fedbcce275279be881f2acfa275c4a96d32606deb6f77637f6",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-03-15T13:15:51Z",
    "title_canon_sha256": "6a86544af33b9f66f5df316693e150c673cf08383734c74730c54246d0088416"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.06520",
    "kind": "arxiv",
    "version": 2
  }
}