Pith Number

pith:AOMJU4YW

pith:2016:AOMJU4YW3EN6E4K75SREWVYHCQ

not attested not anchored not stored refs pending

On the exponential of semi-infinite quasi-Toeplitz matrices

Beatrice Meini, Dario A. Bini

arxiv:1611.06380 v2 · 2016-11-19 · math.NA · cs.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{AOMJU4YW3EN6E4K75SREWVYHCQ}

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	2026-06-04T18:10:16.662650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03989a7316d91be2715feca24b57071413031869227d89e6a3c2612c4edd180e

Aliases

arxiv: 1611.06380 · arxiv_version: 1611.06380v2 · doi: 10.48550/arxiv.1611.06380 · pith_short_12: AOMJU4YW3EN6 · pith_short_16: AOMJU4YW3EN6E4K7 · pith_short_8: AOMJU4YW

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/AOMJU4YW3EN6E4K75SREWVYHCQ \
  | 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: 03989a7316d91be2715feca24b57071413031869227d89e6a3c2612c4edd180e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f4bc29278569876ef8218f6c0c0b86859ba0ca5ed9814d12dc0bc8dafb52449",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2016-11-19T15:20:02Z",
    "title_canon_sha256": "2d6de8763bba3399d9accd9f8bc816f0b80d753f28fe5701b153b275e49e6878"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.06380",
    "kind": "arxiv",
    "version": 2
  }
}