Pith Number

pith:UHXJKZBS

pith:2017:UHXJKZBSZDWKJYYU4IF2Y3Y5IF

not attested not anchored not stored refs pending

A Nystr\"om-based finite element method on polygonal elements

Akash Anand, Jeffrey S. Ovall, Steffen Weisser

arxiv:1708.07323 v1 · 2017-08-24 · math.NA · cs.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{UHXJKZBSZDWKJYYU4IF2Y3Y5IF}

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	2026-06-04T18:11:16.423194Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1ee956432c8eca4e314e20bac6f1d417dfbb8c8fbd93e0ea549943431761a34

Aliases

arxiv: 1708.07323 · arxiv_version: 1708.07323v1 · doi: 10.48550/arxiv.1708.07323 · pith_short_12: UHXJKZBSZDWK · pith_short_16: UHXJKZBSZDWKJYYU · pith_short_8: UHXJKZBS

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/UHXJKZBSZDWKJYYU4IF2Y3Y5IF \
  | 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: a1ee956432c8eca4e314e20bac6f1d417dfbb8c8fbd93e0ea549943431761a34

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "590efbc9bfe6ff9f276a75d4a40be6133508c6eaef6d7e6ffd85b5bd4eb7422d",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-08-24T09:07:04Z",
    "title_canon_sha256": "6dabbc59a1d19743245d3e4ba7f7d9f22e3d17eea00ead374c70490c316c660e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.07323",
    "kind": "arxiv",
    "version": 1
  }
}