Pith Number

pith:KAIYVJS3

pith:2018:KAIYVJS3Y6V4TDDGYV5MJBHYPU

not attested not anchored not stored refs pending

$2\odot 2=4$: Temporal-Spatial Coupling and Beyond in Computational Fluid Dynamics (CFD)

Jiequan Li

arxiv:1810.02971 v2 · 2018-10-06 · 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{KAIYVJS3Y6V4TDDGYV5MJBHYPU}

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	2026-05-18T00:00:01.827462Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50118aa65bc7abc98c66c57ac484f87d35a9ea137ed8845d67ffaac47841e818

Aliases

arxiv: 1810.02971 · arxiv_version: 1810.02971v2 · doi: 10.48550/arxiv.1810.02971 · pith_short_12: KAIYVJS3Y6V4 · pith_short_16: KAIYVJS3Y6V4TDDG · pith_short_8: KAIYVJS3

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/KAIYVJS3Y6V4TDDGYV5MJBHYPU \
  | 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: 50118aa65bc7abc98c66c57ac484f87d35a9ea137ed8845d67ffaac47841e818

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db84b45151cdffa4c05d35b3f8e24a064ae7aa2727450636929274d13bbdeb9f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-10-06T10:01:43Z",
    "title_canon_sha256": "a3f78427a7c2ed67d509360a6dd5cb3fb506ce7e858c03ac616d33c6180e021b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.02971",
    "kind": "arxiv",
    "version": 2
  }
}