Pith Number

pith:27TKDKLI

pith:2017:27TKDKLIHEG7RPZYROFQQX35RN

not attested not anchored not stored refs pending

A local target specific quadrature by expansion method for evaluation of layer potentials in 3D

Anna-Karin Tornberg, Michael Siegel

arxiv:1707.04524 v2 · 2017-07-14 · 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{27TKDKLIHEG7RPZYROFQQX35RN}

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	2026-05-18T00:18:19.836837Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7e6a1a968390df8bf388b8b085f7d8b77bf89f458e95c43ffd87ccba900f17a

Aliases

arxiv: 1707.04524 · arxiv_version: 1707.04524v2 · doi: 10.48550/arxiv.1707.04524 · pith_short_12: 27TKDKLIHEG7 · pith_short_16: 27TKDKLIHEG7RPZY · pith_short_8: 27TKDKLI

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/27TKDKLIHEG7RPZYROFQQX35RN \
  | 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: d7e6a1a968390df8bf388b8b085f7d8b77bf89f458e95c43ffd87ccba900f17a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1fdd5409d9c50169cef61469bd56898ecbb8289cd6c9d8adaea597a2bccba8c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-07-14T14:39:25Z",
    "title_canon_sha256": "7fc465bea4b93883c6159bd8a9df4d03ccdf737b322be7c82725d35968e86ab9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.04524",
    "kind": "arxiv",
    "version": 2
  }
}