Pith Number

pith:C6Q7MIRO

pith:2021:C6Q7MIROFJ7IZVXCUOFNVUGSBR

not attested not anchored not stored refs pending

Learning adaptive coarse spaces of BDDC algorithms for stochastic elliptic problems with oscillatory and high contrast coefficients

Eric Chung, Hyea Hyun Kim, Lina Zhao, Ming Fai Lam

arxiv:2104.09162 v1 · 2021-04-19 · 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{C6Q7MIROFJ7IZVXCUOFNVUGSBR}

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	2026-07-05T02:33:10.113217Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17a1f6222e2a7e8cd6e2a38adad0d20c7a4564a7d723a1b698aa9f98bfede683

Aliases

arxiv: 2104.09162 · arxiv_version: 2104.09162v1 · doi: 10.48550/arxiv.2104.09162 · pith_short_12: C6Q7MIROFJ7I · pith_short_16: C6Q7MIROFJ7IZVXC · pith_short_8: C6Q7MIRO

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/C6Q7MIROFJ7IZVXCUOFNVUGSBR \
  | 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: 17a1f6222e2a7e8cd6e2a38adad0d20c7a4564a7d723a1b698aa9f98bfede683

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34cfbf675aaf74e667f2cde137e5742381ccc98547abe8547c36f1e8800e3388",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2021-04-19T09:40:21Z",
    "title_canon_sha256": "862d0c2942657b3f5aee9b76764bb39e76f0782833a83bf3f5500ca4912ba315"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.09162",
    "kind": "arxiv",
    "version": 1
  }
}