Pith Number

pith:WJFFGRZW

pith:2018:WJFFGRZWRI4NJ6PFYB32WDSHAP

not attested not anchored not stored refs pending

A weighted setting for the numerical approximation of the Poisson problem with singular sources

Ignacio Ojea, Irene Drelichman, Ricardo Dur\'an

arxiv:1809.03529 v1 · 2018-09-10 · 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{WJFFGRZWRI4NJ6PFYB32WDSHAP}

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	2026-05-18T00:06:00.562766Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b24a5347368a38d4f9e5c077ab0e4703d15449d3b9c4308c20fa84a2aba79353

Aliases

arxiv: 1809.03529 · arxiv_version: 1809.03529v1 · doi: 10.48550/arxiv.1809.03529 · pith_short_12: WJFFGRZWRI4N · pith_short_16: WJFFGRZWRI4NJ6PF · pith_short_8: WJFFGRZW

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/WJFFGRZWRI4NJ6PFYB32WDSHAP \
  | 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: b24a5347368a38d4f9e5c077ab0e4703d15449d3b9c4308c20fa84a2aba79353

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa2abb154dd76fa8c1489846d5f66561225fdb301e489e745a084a6f336fd0fe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-09-10T18:09:43Z",
    "title_canon_sha256": "96565213a7f2939c85f82a7410dd16aee12b4bc27fb138923452b248bdc5e8b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.03529",
    "kind": "arxiv",
    "version": 1
  }
}