Pith Number

pith:YZUAAU22

pith:2017:YZUAAU22LAFPLMAQDRO6BVZ644

not attested not anchored not stored refs pending

Hybrid Finite Element - Spectral Method for the Fractional Laplacian: Approximation Theory and Efficient Solver

Christian Glusa, Mark Ainsworth

arxiv:1709.01639 v1 · 2017-09-06 · 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{YZUAAU22LAFPLMAQDRO6BVZ644}

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	2026-05-17T23:45:15.690118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c66800535a580af5b0101c5de0d73ee7027d8ec6b1a341bda01c3c494617aada

Aliases

arxiv: 1709.01639 · arxiv_version: 1709.01639v1 · doi: 10.48550/arxiv.1709.01639 · pith_short_12: YZUAAU22LAFP · pith_short_16: YZUAAU22LAFPLMAQ · pith_short_8: YZUAAU22

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/YZUAAU22LAFPLMAQDRO6BVZ644 \
  | 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: c66800535a580af5b0101c5de0d73ee7027d8ec6b1a341bda01c3c494617aada

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f88fcb9dfaf30cfa994afa042e86b1fceadc889fb65cb9d2169a454f1551743d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-09-06T00:58:08Z",
    "title_canon_sha256": "3a8774092cb45e8308c49e3542bc37153a24e90a8200ff143f1c98f53b50babd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.01639",
    "kind": "arxiv",
    "version": 1
  }
}