Pith Number

pith:GQVJG5SE

pith:2021:GQVJG5SEP3RBS6B3UZBOBVR6NQ

not attested not anchored not stored refs pending

Two-Grid Domain Decomposition Methods for the Coupled Stokes-Darcy System

Fan Wang, Feng Shi, Haibiao Zheng, Heng Li, Yizhong Sun

arxiv:2104.13551 v2 · 2021-04-28 · 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{GQVJG5SEP3RBS6B3UZBOBVR6NQ}

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	2026-07-05T03:04:24.254814Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

342a9376447ee219783ba642e0d63e6c1de8b457c1abedc4c8fb19cb9d8336bd

Aliases

arxiv: 2104.13551 · arxiv_version: 2104.13551v2 · doi: 10.48550/arxiv.2104.13551 · pith_short_12: GQVJG5SEP3RB · pith_short_16: GQVJG5SEP3RBS6B3 · pith_short_8: GQVJG5SE

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/GQVJG5SEP3RBS6B3UZBOBVR6NQ \
  | 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: 342a9376447ee219783ba642e0d63e6c1de8b457c1abedc4c8fb19cb9d8336bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "865b6603e9e42b4170c294abba2ad24bc759997a7c3280c048356467148dbc4d",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2021-04-28T03:17:54Z",
    "title_canon_sha256": "c2f81e8a9b4ed1d33b76c802d1672ba2a12ed946a2fe4b54fc51b82096c554ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.13551",
    "kind": "arxiv",
    "version": 2
  }
}