Pith Number

pith:BQNOA5EO

pith:2015:BQNOA5EOBLDCYWKTRUXSELTW25

not attested not anchored not stored refs pending

An Asymptotic Preserving Two-Dimensional Staggered Grid Method for multiscale transport equations

Kerstin K\"upper, Martin Frank, Shi Jin

arxiv:1501.02180 v2 · 2015-01-09 · 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{BQNOA5EOBLDCYWKTRUXSELTW25}

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	2026-05-18T01:17:12.889915Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c1ae0748e0ac62c59538d2f222e76d753de511b3c011461d9a7d48888d93fb9

Aliases

arxiv: 1501.02180 · arxiv_version: 1501.02180v2 · doi: 10.48550/arxiv.1501.02180 · pith_short_12: BQNOA5EOBLDC · pith_short_16: BQNOA5EOBLDCYWKT · pith_short_8: BQNOA5EO

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/BQNOA5EOBLDCYWKTRUXSELTW25 \
  | 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: 0c1ae0748e0ac62c59538d2f222e76d753de511b3c011461d9a7d48888d93fb9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae38273b60f6ca6c5ea579cf6903fa82df5e9de05f137c0c35e3cf621eeb08f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-01-09T15:46:18Z",
    "title_canon_sha256": "1169c967fbfdead51e61b081183f08a2823e6861a3712f38b780937471e6bd00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.02180",
    "kind": "arxiv",
    "version": 2
  }
}