Pith Number

pith:UG24EOE2

pith:2021:UG24EOE2UZLAWJW664D5SMU77U

not attested not anchored not stored refs pending

A local-global generalized multiscale finite element method for highly heterogeneous stochastic groundwater flow problems

Eric Chung, Shubin Fu, Yiran Wang

arxiv:2105.05413 v1 · 2021-05-12 · math.NA · cs.CE · 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{UG24EOE2UZLAWJW664D5SMU77U}

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	2026-07-05T04:00:52.821961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1b5c2389aa6560b26def707d9329ffd33a5f60a760161583b9b1c85fca7f977

Aliases

arxiv: 2105.05413 · arxiv_version: 2105.05413v1 · doi: 10.48550/arxiv.2105.05413 · pith_short_12: UG24EOE2UZLA · pith_short_16: UG24EOE2UZLAWJW6 · pith_short_8: UG24EOE2

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/UG24EOE2UZLAWJW664D5SMU77U \
  | 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: a1b5c2389aa6560b26def707d9329ffd33a5f60a760161583b9b1c85fca7f977

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "886c4ac991d38cf378d4c6d56df515ab764bd1a5e6fc812cf1afc62d89b7dd1e",
    "cross_cats_sorted": [
      "cs.CE",
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2021-05-12T03:25:40Z",
    "title_canon_sha256": "665d2ca869debc8cf8c7091e07d083712b8d061f2b6136b9cb81c6db25d0f76c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.05413",
    "kind": "arxiv",
    "version": 1
  }
}