Pith Number

pith:5KVJZXQI

pith:2022:5KVJZXQIPPPYJGZW24URBY2DKE

not attested not anchored not stored refs pending

Some suggestions concerning the conjecture in: 'Tractable semi-algebraic approximation using Christoffel-Darboux kernel'

Mathias Oster, Reinhold Schneider

arxiv:2203.12889 v1 · 2022-03-24 · math.CA · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5KVJZXQIPPPYJGZW24URBY2DKE}

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	2026-07-05T04:08:18.489051Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eaaa9cde087bdf849b36d72910e34351384878df6af04a035885c83408b8f277

Aliases

arxiv: 2203.12889 · arxiv_version: 2203.12889v1 · doi: 10.48550/arxiv.2203.12889 · pith_short_12: 5KVJZXQIPPPY · pith_short_16: 5KVJZXQIPPPYJGZW · pith_short_8: 5KVJZXQI

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/5KVJZXQIPPPYJGZW24URBY2DKE \
  | 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: eaaa9cde087bdf849b36d72910e34351384878df6af04a035885c83408b8f277

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "902c3821629054bafb7609efb9b3d51e94a7ada64fdcd1a71210c8c70ba539fa",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2022-03-24T07:23:05Z",
    "title_canon_sha256": "284ff9669d28bd99f77340ab9c3ce6c5932c2f103731fe6081cd77318eb6f6b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.12889",
    "kind": "arxiv",
    "version": 1
  }
}