Pith Number

pith:OPR4XJ3V

pith:2021:OPR4XJ3VKML6SDE3UFVN25APP3

not attested not anchored not stored refs pending

Optimal soil sampling design based on the maxvol algorithm

Anna Petrovskaia, Gleb Ryzhakov, Ivan Oseledets

arxiv:2103.10337 v1 · 2021-03-18 · cs.CY · stat.AP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OPR4XJ3VKML6SDE3UFVN25APP3}

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	2026-07-05T02:24:25.622310Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73e3cba7755317e90c9ba16add740f7ee49b0980f3751aa0c18dd5fd7839fdc5

Aliases

arxiv: 2103.10337 · arxiv_version: 2103.10337v1 · doi: 10.48550/arxiv.2103.10337 · pith_short_12: OPR4XJ3VKML6 · pith_short_16: OPR4XJ3VKML6SDE3 · pith_short_8: OPR4XJ3V

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/OPR4XJ3VKML6SDE3UFVN25APP3 \
  | 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: 73e3cba7755317e90c9ba16add740f7ee49b0980f3751aa0c18dd5fd7839fdc5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5710338fccfc832cafbb551e065fc43e077f04d9358b4d9c761b4dd8b932cad",
    "cross_cats_sorted": [
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2021-03-18T15:54:06Z",
    "title_canon_sha256": "c3b7dd92c3346eef4cf6988da70d19536a4d4836bd48f20a6515f039ee8c1675"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.10337",
    "kind": "arxiv",
    "version": 1
  }
}