Pith Number

pith:DK4WTIL5

pith:2016:DK4WTIL5AL5GMQKGMUD7HYTWRY

not attested not anchored not stored refs pending

Virtual Element Method for the Laplace-Beltrami equation on surfaces

Ivonne Sgura, Massimo Frittelli

arxiv:1612.02369 v1 · 2016-12-07 · 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{DK4WTIL5AL5GMQKGMUD7HYTWRY}

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	2026-06-04T18:10:19.805791Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ab969a17d02fa6641466507f3e2768e162341d865edea17feb63e3722c4cbe4

Aliases

arxiv: 1612.02369 · arxiv_version: 1612.02369v1 · doi: 10.48550/arxiv.1612.02369 · pith_short_12: DK4WTIL5AL5G · pith_short_16: DK4WTIL5AL5GMQKG · pith_short_8: DK4WTIL5

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/DK4WTIL5AL5GMQKGMUD7HYTWRY \
  | 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: 1ab969a17d02fa6641466507f3e2768e162341d865edea17feb63e3722c4cbe4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31720c2a6eb23970bb613761dea6dce92894636080b5e0629f27161538a2ec22",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-12-07T18:57:31Z",
    "title_canon_sha256": "b1db1bb5370d3577a713cbb850cd0353f74613250f8a53b33e4bc41c2c1b8147"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.02369",
    "kind": "arxiv",
    "version": 1
  }
}