Pith Number

pith:OQ4QVOLP

pith:2015:OQ4QVOLPNMTYCFWDVZLPD3J347

not attested not anchored not stored refs pending

An optimized dispersion-relation-preserving combined compact difference scheme to solve advection equations

Ching-Hao Yu, Dan Wang, Thomas P\"ahtz, Zhiguo He

arxiv:1508.02830 v1 · 2015-08-12 · physics.comp-ph · physics.flu-dyn

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OQ4QVOLPNMTYCFWDVZLPD3J347}

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	2026-05-18T01:32:07.740307Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74390ab96f6b278116c3ae56f1ed3be7e1f2e167f6536c1ff8eb1204a0eb9108

Aliases

arxiv: 1508.02830 · arxiv_version: 1508.02830v1 · doi: 10.48550/arxiv.1508.02830 · pith_short_12: OQ4QVOLPNMTY · pith_short_16: OQ4QVOLPNMTYCFWD · pith_short_8: OQ4QVOLP

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/OQ4QVOLPNMTYCFWDVZLPD3J347 \
  | 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: 74390ab96f6b278116c3ae56f1ed3be7e1f2e167f6536c1ff8eb1204a0eb9108

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9f7f2743615311948ec08ce046acf6427dac6c4222622205a3e5dc3b19b7a60",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2015-08-12T07:13:03Z",
    "title_canon_sha256": "bea78c7b8e798a2660102133584754ee2f37a05c6e4bef48f9a8153550820da8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.02830",
    "kind": "arxiv",
    "version": 1
  }
}