Pith Number

pith:RGU4YZIF

pith:2015:RGU4YZIFPGBHA7DKDER7SNRG7R

not attested not anchored not stored refs pending

Numerical studies of an adaptive finite element method applied to the reconstruction of shapes of buried objects from experimental data

John Bondestam Malmberg, Larisa Beilina, Michael V. Klibanov, Nguyen Trung Th\`anh

arxiv:1502.07954 v2 · 2015-02-27 · 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{RGU4YZIFPGBHA7DKDER7SNRG7R}

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	2026-05-18T02:25:39.896893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89a9cc65057982707c6a1923f93626fc5b4e6d6887a4506debae402113c5f9eb

Aliases

arxiv: 1502.07954 · arxiv_version: 1502.07954v2 · doi: 10.48550/arxiv.1502.07954 · pith_short_12: RGU4YZIFPGBH · pith_short_16: RGU4YZIFPGBHA7DK · pith_short_8: RGU4YZIF

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/RGU4YZIFPGBHA7DKDER7SNRG7R \
  | 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: 89a9cc65057982707c6a1923f93626fc5b4e6d6887a4506debae402113c5f9eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e7cd98a6a6cc3b588e9796139b158588f7c7f74eeecb4cdb54244920cf20bb7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-02-27T16:21:55Z",
    "title_canon_sha256": "4cf7454979218beb592018b9c3f2d7717af62e416008222cf6e290eccaf9c234"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.07954",
    "kind": "arxiv",
    "version": 2
  }
}