Pith Number

pith:T7KFIDIU

pith:2017:T7KFIDIUHRGSAVW3KR7VNUUEQL

not attested not anchored not stored refs pending

Optimal Experimental Design for Constrained Inverse Problems

Julianne Chung, Lars Ruthotto, Matthias Chung

arxiv:1708.04740 v1 · 2017-08-16 · math.NA · 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{T7KFIDIUHRGSAVW3KR7VNUUEQL}

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	2026-05-18T00:37:58.048872Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9fd4540d143c4d2056db547f56d28482c8e02d3163b38a92078965aed7122f09

Aliases

arxiv: 1708.04740 · arxiv_version: 1708.04740v1 · doi: 10.48550/arxiv.1708.04740 · pith_short_12: T7KFIDIUHRGS · pith_short_16: T7KFIDIUHRGSAVW3 · pith_short_8: T7KFIDIU

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/T7KFIDIUHRGSAVW3KR7VNUUEQL \
  | 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: 9fd4540d143c4d2056db547f56d28482c8e02d3163b38a92078965aed7122f09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "298993ea7aecaa26d69aa77cc43657209585959abb0cdd98a0098debfcf938b1",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-08-16T01:55:02Z",
    "title_canon_sha256": "60978ace92fe55d9f542c87e3093d891c63069226ef6349401314b009e7f73d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.04740",
    "kind": "arxiv",
    "version": 1
  }
}