Pith Number

pith:EPT6SWKW

pith:2017:EPT6SWKW7ZQ6PFWQB55VXDGVJA

not attested not anchored not stored refs pending

The aggregated unfitted finite element method for elliptic problems

Alberto F. Mart\'in, Francesc Verdugo, Santiago Badia

arxiv:1709.09122 v1 · 2017-09-26 · cs.CE · 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{EPT6SWKW7ZQ6PFWQB55VXDGVJA}

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	2026-05-18T00:16:31.223330Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23e7e95956fe61e796d00f7b5b8cd54834b811703885bd8164619f23684f7082

Aliases

arxiv: 1709.09122 · arxiv_version: 1709.09122v1 · doi: 10.48550/arxiv.1709.09122 · pith_short_12: EPT6SWKW7ZQ6 · pith_short_16: EPT6SWKW7ZQ6PFWQ · pith_short_8: EPT6SWKW

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/EPT6SWKW7ZQ6PFWQB55VXDGVJA \
  | 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: 23e7e95956fe61e796d00f7b5b8cd54834b811703885bd8164619f23684f7082

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdbf9f46b282e625f0b85a3bd4ccc91e576aa97dfa4c9f73d040d9d605200a47",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CE",
    "submitted_at": "2017-09-26T16:39:26Z",
    "title_canon_sha256": "57feb52f2aebe6ebfe9d3ffec262739dd206a4060ce6f68bbd9fa6c49db21d7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.09122",
    "kind": "arxiv",
    "version": 1
  }
}