Pith Number

pith:QXAID6L2

pith:2020:QXAID6L2BHBU7KFXJE73FAX65B

not attested not anchored not stored refs pending

Boundary treatment of high order Runge-Kutta methods for hyperbolic conservation laws

Juntao Huang, Steven J. Ruuth, Weifeng Zhao

arxiv:2001.09854 v2 · 2020-01-24 · math.NA · cs.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{QXAID6L2BHBU7KFXJE73FAX65B}

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	2026-07-05T01:24:30.560639Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85c081f97a09c34fa8b7493fb282fee85e8173f24e5c544373081916b69b2485

Aliases

arxiv: 2001.09854 · arxiv_version: 2001.09854v2 · doi: 10.48550/arxiv.2001.09854 · pith_short_12: QXAID6L2BHBU · pith_short_16: QXAID6L2BHBU7KFX · pith_short_8: QXAID6L2

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/QXAID6L2BHBU7KFXJE73FAX65B \
  | 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: 85c081f97a09c34fa8b7493fb282fee85e8173f24e5c544373081916b69b2485

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6dd3aef0d078dae97f2caa18e481b8d0656d1050eb04a022eeeadb9bd9ca50ce",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2020-01-24T15:47:09Z",
    "title_canon_sha256": "e6c802fd47d9f3d057c9a2c1d51a7c825d68f8f5ba8141b754688e2a7edf3177"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.09854",
    "kind": "arxiv",
    "version": 2
  }
}