Pith Number

pith:LUAK2ZKA

pith:2026:LUAK2ZKA32BMYRPAVLET6INZRK

not attested not anchored not stored refs pending

Scalable parallel 3-D TEM inversion via rational approximation of the matrix exponential

Ralph-Uwe B\"orner, Stefan G\"uttel, Thomas G\"unther

arxiv:2605.19951 v1 · 2026-05-19 · math.NA · cs.NA · physics.geo-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LUAK2ZKA32BMYRPAVLET6INZRK}

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	2026-05-20T02:05:56.723125Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d00ad6540de82cc45e0aac93f21b98a87b5bf8497fd31d32d108feb2de12b82

Aliases

arxiv: 2605.19951 · arxiv_version: 2605.19951v1 · doi: 10.48550/arxiv.2605.19951 · pith_short_12: LUAK2ZKA32BM · pith_short_16: LUAK2ZKA32BMYRPA · pith_short_8: LUAK2ZKA

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/LUAK2ZKA32BMYRPAVLET6INZRK \
  | 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: 5d00ad6540de82cc45e0aac93f21b98a87b5bf8497fd31d32d108feb2de12b82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea73093cb654d39b2298d2757fb2e23fe793a505b1c89404e2d26d67a2aa8ec5",
    "cross_cats_sorted": [
      "cs.NA",
      "physics.geo-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2026-05-19T15:05:03Z",
    "title_canon_sha256": "2076187ff8ae99640178a360dc6547d61901311ab5286f5b3bf4641abc81d2d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.19951",
    "kind": "arxiv",
    "version": 1
  }
}