Pith Number

pith:CQQ7MKPP

pith:2016:CQQ7MKPPS6WZ5HHJ7HNJ3E26XX

not attested not anchored not stored refs pending

A mixed-element two-grid discretization for Helmholtz transmission eigenvalues

Yao Luo, Yidu Yang

arxiv:1603.02429 v1 · 2016-03-08 · 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{CQQ7MKPPS6WZ5HHJ7HNJ3E26XX}

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	2026-05-18T01:19:23.350337Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1421f629ef97ad9e9ce9f9da9d935ebdf3b4c62130ba045d53ff2a78a8c1368d

Aliases

arxiv: 1603.02429 · arxiv_version: 1603.02429v1 · doi: 10.48550/arxiv.1603.02429 · pith_short_12: CQQ7MKPPS6WZ · pith_short_16: CQQ7MKPPS6WZ5HHJ · pith_short_8: CQQ7MKPP

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/CQQ7MKPPS6WZ5HHJ7HNJ3E26XX \
  | 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: 1421f629ef97ad9e9ce9f9da9d935ebdf3b4c62130ba045d53ff2a78a8c1368d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f84f1cd14fcf402a11d84fb9bd6c7027316c31c369f2d33356c72068d9f9168e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-03-08T09:21:20Z",
    "title_canon_sha256": "0940981813160d57aea1e63fc9bc7c080b97c33d5606031cd39a05b6d1a5fe5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.02429",
    "kind": "arxiv",
    "version": 1
  }
}