Pith Number

pith:2S7ZWXG6

pith:2018:2S7ZWXG6FP7HCQREOIVYSG2U5X

not attested not anchored not stored refs pending

Third order WENO scheme on sparse grids for hyperbolic equations

Dong Lu, Shanqin Chen, Yong-Tao Zhang

arxiv:1804.00725 v1 · 2018-04-02 · 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{2S7ZWXG6FP7HCQREOIVYSG2U5X}

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	2026-05-18T00:19:32.361271Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4bf9b5cde2bfe714224722b891b54edfe0772a1066a6f06f12fc347b1446e7c

Aliases

arxiv: 1804.00725 · arxiv_version: 1804.00725v1 · doi: 10.48550/arxiv.1804.00725 · pith_short_12: 2S7ZWXG6FP7H · pith_short_16: 2S7ZWXG6FP7HCQRE · pith_short_8: 2S7ZWXG6

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/2S7ZWXG6FP7HCQREOIVYSG2U5X \
  | 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: d4bf9b5cde2bfe714224722b891b54edfe0772a1066a6f06f12fc347b1446e7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e59912ec0d1147cbd34c7c40858c19b45373428f4ae8d4db6211b4f850d4c591",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-04-02T20:49:17Z",
    "title_canon_sha256": "91f8f0766522721454c119822b5df8109fe51863ba00a204d1a35044bf6e23bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.00725",
    "kind": "arxiv",
    "version": 1
  }
}