Pith Number

pith:BJGPEMDM

pith:2018:BJGPEMDMESSXJUYHBWTPLKTW4H

not attested not anchored not stored refs pending

Adaptive BDDC algorithms for the system arising from plane wave discretization of Helmholtz equations

Jie Peng, Junxian Wang, Shi Shu

arxiv:1801.08800 v2 · 2018-01-26 · 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{BJGPEMDMESSXJUYHBWTPLKTW4H}

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	2026-05-18T00:13:37.347380Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a4cf2306c24a574d3070da6f5aa76e1efbb678d90c5160800258f9d19bf9589

Aliases

arxiv: 1801.08800 · arxiv_version: 1801.08800v2 · doi: 10.48550/arxiv.1801.08800 · pith_short_12: BJGPEMDMESSX · pith_short_16: BJGPEMDMESSXJUYH · pith_short_8: BJGPEMDM

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/BJGPEMDMESSXJUYHBWTPLKTW4H \
  | 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: 0a4cf2306c24a574d3070da6f5aa76e1efbb678d90c5160800258f9d19bf9589

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99781d966d2310f797da70529bb7392af9c539ebadee925aebd04a4b636ea4b9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-01-26T13:29:08Z",
    "title_canon_sha256": "28eb85e274246ca88a80c0944fdea8ae18d4fc91adca71c4c85134f6f3ba78ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.08800",
    "kind": "arxiv",
    "version": 2
  }
}