Pith Number

pith:FGLSLYJ2

pith:2018:FGLSLYJ2DGQXLB7A2DYNCSCR2Y

not attested not anchored not stored refs pending

Analysis of topological derivative as a tool for qualitative identification

Fioralba Cakoni, Marc Bonnet (POEMS)

arxiv:1811.10538 v1 · 2018-11-22 · math.NA · cs.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{FGLSLYJ2DGQXLB7A2DYNCSCR2Y}

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	2026-06-04T20:13:43.632353Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

299725e13a19a17587e0d0f0d14851d63b33ebb5ae77b44c8de6636d4b3daddb

Aliases

arxiv: 1811.10538 · arxiv_version: 1811.10538v1 · doi: 10.48550/arxiv.1811.10538 · pith_short_12: FGLSLYJ2DGQX · pith_short_16: FGLSLYJ2DGQXLB7A · pith_short_8: FGLSLYJ2

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/FGLSLYJ2DGQXLB7A2DYNCSCR2Y \
  | 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: 299725e13a19a17587e0d0f0d14851d63b33ebb5ae77b44c8de6636d4b3daddb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0216c7204df143eb5571b7bac7c8d227c32f660e9fe742bd9d8cffbb58a12bcc",
    "cross_cats_sorted": [
      "cs.NA",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-11-22T07:18:10Z",
    "title_canon_sha256": "fe09d6c5f51c8b4c4667980cb3cc368c4b33904584876966d993914479caa4a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.10538",
    "kind": "arxiv",
    "version": 1
  }
}