Pith Number

pith:ITDEVOF5

pith:2018:ITDEVOF5CX76CKQQYAE4SGEAFN

not attested not anchored not stored refs pending

A reduced basis method for the nonlinear Poisson-Boltzmann equation

Lijie Ji, Yanlai Chen, Zhenli Xu

arxiv:1808.09392 v1 · 2018-08-28 · 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{ITDEVOF5CX76CKQQYAE4SGEAFN}

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	2026-05-18T00:07:01.513409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44c64ab8bd15ffe12a10c009c918802b4859338f78077262affb132a09ffa925

Aliases

arxiv: 1808.09392 · arxiv_version: 1808.09392v1 · doi: 10.48550/arxiv.1808.09392 · pith_short_12: ITDEVOF5CX76 · pith_short_16: ITDEVOF5CX76CKQQ · pith_short_8: ITDEVOF5

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/ITDEVOF5CX76CKQQYAE4SGEAFN \
  | 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: 44c64ab8bd15ffe12a10c009c918802b4859338f78077262affb132a09ffa925

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7563198e699a20f46050c0e6242f4e3ca9bbefe7461e4e573b70881134756663",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-08-28T16:29:09Z",
    "title_canon_sha256": "ecc52abeff67aa4ea40077b151ef488f2b7561ff3c082f26764d3735fbee4839"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.09392",
    "kind": "arxiv",
    "version": 1
  }
}