Pith Number

pith:LTQIFUBC

pith:2018:LTQIFUBCBOU4M4RRPIMGU2JSGP

not attested not anchored not stored refs pending

Sparse Grid Central Discontinuous Galerkin Method for Linear Hyperbolic Systems in High Dimensions

Anqi Chen, Mengping Zhang, Yingda Cheng, Zhanjing Tao

arxiv:1807.04137 v2 · 2018-07-10 · 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{LTQIFUBCBOU4M4RRPIMGU2JSGP}

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	2026-05-17T23:56:20.478089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ce082d0220ba9c672317a186a693233deb3c88ec85669c5deb13ffbf68c1f2b

Aliases

arxiv: 1807.04137 · arxiv_version: 1807.04137v2 · doi: 10.48550/arxiv.1807.04137 · pith_short_12: LTQIFUBCBOU4 · pith_short_16: LTQIFUBCBOU4M4RR · pith_short_8: LTQIFUBC

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/LTQIFUBCBOU4M4RRPIMGU2JSGP \
  | 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: 5ce082d0220ba9c672317a186a693233deb3c88ec85669c5deb13ffbf68c1f2b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0864547da1c8395050485a59734615e2e9ff9821fa1ab9ae819f9bb8c34418a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-07-10T06:00:14Z",
    "title_canon_sha256": "95c91c23d65759b1bb056e05ea8651aaf3e53006eb218f8ed3308850adc082f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04137",
    "kind": "arxiv",
    "version": 2
  }
}