Pith Number

pith:3N7X5TJS

pith:2019:3N7X5TJST4X4EUAOFL4W66DDRE

not attested not anchored not stored refs pending

Stable spline identification of linear systems under missing data

Alessandro Chiuso, Gianluigi Pillonetto, Giuseppe De Nicolao

arxiv:1908.03913 v2 · 2019-08-11 · eess.SY · 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{3N7X5TJST4X4EUAOFL4W66DDRE}

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	2026-07-05T01:02:43.711148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db7f7ecd329f2fc2500e2af96f7863890d5336784d62af4e1354221256ec0cd4

Aliases

arxiv: 1908.03913 · arxiv_version: 1908.03913v2 · doi: 10.48550/arxiv.1908.03913 · pith_short_12: 3N7X5TJST4X4 · pith_short_16: 3N7X5TJST4X4EUAO · pith_short_8: 3N7X5TJS

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/3N7X5TJST4X4EUAOFL4W66DDRE \
  | 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: db7f7ecd329f2fc2500e2af96f7863890d5336784d62af4e1354221256ec0cd4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d764dd2e6565a87f23f852b83f4309a46f323fbcc0a4ab776403ddfddd96773",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2019-08-11T14:27:28Z",
    "title_canon_sha256": "8b752a9a4f95492961f6620dcf66b395587841df218e417131d79c1dc4da03f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03913",
    "kind": "arxiv",
    "version": 2
  }
}