Pith Number

pith:CS3ZJCUQ

pith:2019:CS3ZJCUQTKECUW4F6JYIIFJCIS

not attested not anchored not stored refs pending

A discrete least squares collocation method for two-dimensional nonlinear time-dependent partial differential equations

Fanhai Zeng, Ian Turner, Kevin Burrage, Stephen J. Wright

arxiv:1904.11647 v1 · 2019-04-26 · 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{CS3ZJCUQTKECUW4F6JYIIFJCIS}

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	2026-05-17T23:42:19.616386Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14b7948a909a882a5b85f2708415224483120ec4a12b1014b475a1b9e094a3af

Aliases

arxiv: 1904.11647 · arxiv_version: 1904.11647v1 · doi: 10.48550/arxiv.1904.11647 · pith_short_12: CS3ZJCUQTKEC · pith_short_16: CS3ZJCUQTKECUW4F · pith_short_8: CS3ZJCUQ

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/CS3ZJCUQTKECUW4F6JYIIFJCIS \
  | 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: 14b7948a909a882a5b85f2708415224483120ec4a12b1014b475a1b9e094a3af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9266f5b07f2d10be7101741adb9f24ab371b8f7df8392b3a9edfaa164433a76d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-04-26T02:05:13Z",
    "title_canon_sha256": "33e5f6e914cd2c238ba62349d3a96bf9e6a4462236c209798dc3dae0a779edd1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.11647",
    "kind": "arxiv",
    "version": 1
  }
}