Pith Number

pith:FPUSOBV2

pith:2012:FPUSOBV2DCNYYJMIWZYIVCV5Z6

not attested not anchored not stored refs pending

A New Triangular Spectral Element Method I: Implementation and Analysis on a Triangle

Huiyuan Li, Li-Lian Wang, Michael Daniel Samson

arxiv:1204.4790 v1 · 2012-04-21 · 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{FPUSOBV2DCNYYJMIWZYIVCV5Z6}

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	2026-05-18T03:57:15.359718Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2be92706ba189b8c2588b6708a8abdcf9564ba50cee4bb2f67e1f87b2af7ad74

Aliases

arxiv: 1204.4790 · arxiv_version: 1204.4790v1 · doi: 10.48550/arxiv.1204.4790 · pith_short_12: FPUSOBV2DCNY · pith_short_16: FPUSOBV2DCNYYJMI · pith_short_8: FPUSOBV2

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/FPUSOBV2DCNYYJMIWZYIVCV5Z6 \
  | 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: 2be92706ba189b8c2588b6708a8abdcf9564ba50cee4bb2f67e1f87b2af7ad74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d7bd13dd4d94b9a388e2c5cbfbde900f8c845704a6bad0fdb66f356188382c3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-04-21T08:36:10Z",
    "title_canon_sha256": "2881985c4a25c859f6be89f3ca82da28da0a75eb95171c39a7416645d0d71458"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.4790",
    "kind": "arxiv",
    "version": 1
  }
}