Pith Number

pith:HEFHCN5H

pith:2017:HEFHCN5HFXYEP5HWU4MYRKXVH6

not attested not anchored not stored refs pending

A Convex Optimization Approach for Backstepping PDE Design: Volterra and Fredholm Operators

Alessandro Astolfi, Pedro Ascencio, Thomas Parisini

arxiv:1710.03723 v1 · 2017-10-10 · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HEFHCN5HFXYEP5HWU4MYRKXVH6}

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	2026-05-18T00:33:10.874898Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

390a7137a72df047f4f6a71988aaf53f9033297a57a8c68fd858b991ace19e3d

Aliases

arxiv: 1710.03723 · arxiv_version: 1710.03723v1 · doi: 10.48550/arxiv.1710.03723 · pith_short_12: HEFHCN5HFXYE · pith_short_16: HEFHCN5HFXYEP5HW · pith_short_8: HEFHCN5H

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/HEFHCN5HFXYEP5HWU4MYRKXVH6 \
  | 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: 390a7137a72df047f4f6a71988aaf53f9033297a57a8c68fd858b991ace19e3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "174dbb38046fbe0ab62f662be93c7f5647c888d14b2641247aef014824fe121b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2017-10-10T16:48:43Z",
    "title_canon_sha256": "e7818b154dad0415eb6c52dd5dbd0a0217e24d0078bba46f887631cd744cc7a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.03723",
    "kind": "arxiv",
    "version": 1
  }
}