Pith Number

pith:LFAQ5TUI

pith:2015:LFAQ5TUIF5SMDLVU6VMEJTOQAC

not attested not anchored not stored refs pending

Numerical Methods for the Inverse Nonlinear Fourier Transform

Luigi Barletti, Marco Secondini, Stella Civelli

arxiv:1509.04321 v1 · 2015-08-29 · math.NA · cs.IT · cs.NA · math.IT · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LFAQ5TUIF5SMDLVU6VMEJTOQAC}

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	2026-05-18T01:26:02.537706Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59410ece882f64c1aeb4f55844cdd000ba365ba2578e8b61fba9f248cdcfb554

Aliases

arxiv: 1509.04321 · arxiv_version: 1509.04321v1 · doi: 10.48550/arxiv.1509.04321 · pith_short_12: LFAQ5TUIF5SM · pith_short_16: LFAQ5TUIF5SMDLVU · pith_short_8: LFAQ5TUI

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/LFAQ5TUIF5SMDLVU6VMEJTOQAC \
  | 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: 59410ece882f64c1aeb4f55844cdd000ba365ba2578e8b61fba9f248cdcfb554

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3019aafc5c0a5912a93028062b15f1c91cac4de315332d8337600fc796ac004a",
    "cross_cats_sorted": [
      "cs.IT",
      "cs.NA",
      "math.IT",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-08-29T16:51:15Z",
    "title_canon_sha256": "a7469de3ccc440b44f5bc49baca0558f50ea3fd32f5dad924e16e5c393639bea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.04321",
    "kind": "arxiv",
    "version": 1
  }
}