Pith Number

pith:CYO356BW

pith:2021:CYO356BWHPJFFNWFFOCGJHAUIJ

not attested not anchored not stored refs pending

Sparse Spectral-Galerkin Method on An Arbitrary Tetrahedron Using Generalized Koornwinder Polynomials

Huiyuan Li, Lueling Jia, Zhimin Zhang

arxiv:2105.07547 v1 · 2021-05-16 · 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{CYO356BWHPJFFNWFFOCGJHAUIJ}

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	2026-07-05T02:40:41.849628Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

161dbef8363bd252b6c52b84649c144246c55be7e4b363e8bf02be7e9c954af3

Aliases

arxiv: 2105.07547 · arxiv_version: 2105.07547v1 · doi: 10.48550/arxiv.2105.07547 · pith_short_12: CYO356BWHPJF · pith_short_16: CYO356BWHPJFFNWF · pith_short_8: CYO356BW

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/CYO356BWHPJFFNWFFOCGJHAUIJ \
  | 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: 161dbef8363bd252b6c52b84649c144246c55be7e4b363e8bf02be7e9c954af3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27c25d2b340a13dd66d531b615715eac421cbd01ad49e56cf128f5f8e2b54fe3",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2021-05-16T23:56:38Z",
    "title_canon_sha256": "46490b19137fcf1689b8881fbcd0dff171b13cb9c4913598bf1edd1762c008da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.07547",
    "kind": "arxiv",
    "version": 1
  }
}