Pith Number

pith:NSKELDRG

pith:2015:NSKELDRGMMKCWLUP5HYK42OJ7K

not attested not anchored not stored refs pending

The weak Galerkin method for eigenvalue problems

Hehu Xie, Qilong Zhai, Ran Zhang

arxiv:1508.05304 v1 · 2015-08-21 · 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{NSKELDRGMMKCWLUP5HYK42OJ7K}

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	2026-05-18T01:34:56.182333Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c94458e2663142b2e8fe9f0ae69c9fa855f8bd6c985dd27c2bfd7f754b50547

Aliases

arxiv: 1508.05304 · arxiv_version: 1508.05304v1 · doi: 10.48550/arxiv.1508.05304 · pith_short_12: NSKELDRGMMKC · pith_short_16: NSKELDRGMMKCWLUP · pith_short_8: NSKELDRG

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/NSKELDRGMMKCWLUP5HYK42OJ7K \
  | 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: 6c94458e2663142b2e8fe9f0ae69c9fa855f8bd6c985dd27c2bfd7f754b50547

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ac1ca305d6111c3304abae849b1ae7680c36e4cc15eab055f80df554124e9d2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-08-21T15:15:34Z",
    "title_canon_sha256": "d2fa28240f001d4a709621f92f738e670528f4f489adda9e18bc8e9fffaccff3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.05304",
    "kind": "arxiv",
    "version": 1
  }
}