Pith Number

pith:JEMIETWC

pith:2026:JEMIETWCC7YM7ARGZLON3CBD6S

not attested not anchored not stored refs pending

A survey of trust-region radius update mechanisms. Part I: First-order analysis

Fabian Bastin, J\'er\'emy Rieussec

arxiv:2606.30202 v1 · 2026-06-29 · math.OC · cs.NA · 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{JEMIETWCC7YM7ARGZLON3CBD6S}

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	2026-06-30T02:17:53.844512Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4918824ec217f0cf8226cadcdd8823f49ca9adb5ef1c810a4c3c8cdb483929d3

Aliases

arxiv: 2606.30202 · arxiv_version: 2606.30202v1 · doi: 10.48550/arxiv.2606.30202 · pith_short_12: JEMIETWCC7YM · pith_short_16: JEMIETWCC7YM7ARG · pith_short_8: JEMIETWC

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/JEMIETWCC7YM7ARGZLON3CBD6S \
  | 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: 4918824ec217f0cf8226cadcdd8823f49ca9adb5ef1c810a4c3c8cdb483929d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6acd147b7a0382fe312c46b7272e7f3a2bfa0a151402a2d966b1a87e2a39e16c",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2026-06-29T12:21:32Z",
    "title_canon_sha256": "acd9e7023f8d75d61488c6d6d4a7ee5b4c893071c4e65af2b4017429063ce659"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.30202",
    "kind": "arxiv",
    "version": 1
  }
}