Pith Number

pith:DQFAK5L3

pith:2016:DQFAK5L3DO32XQLOVIL66SVDHW

not attested not anchored not stored refs pending

Inverse Problems for Matrix Exponential in System Identification: System Aliasing

Johan Thunberg, Jorge Goncalves, Zuogon Yue

arxiv:1605.06973 v1 · 2016-05-23 · 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{DQFAK5L3DO32XQLOVIL66SVDHW}

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	2026-05-18T01:14:10.702302Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c0a05757b1bb7abc16eaa17ef4aa33db326d00438fdb23aae6ce35cc7c11158

Aliases

arxiv: 1605.06973 · arxiv_version: 1605.06973v1 · doi: 10.48550/arxiv.1605.06973 · pith_short_12: DQFAK5L3DO32 · pith_short_16: DQFAK5L3DO32XQLO · pith_short_8: DQFAK5L3

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/DQFAK5L3DO32XQLOVIL66SVDHW \
  | 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: 1c0a05757b1bb7abc16eaa17ef4aa33db326d00438fdb23aae6ce35cc7c11158

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "806ef5e39b61c2e083f4a5391ee26955eb326c103a2bbf9a66cf95c831787cf1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2016-05-23T11:09:22Z",
    "title_canon_sha256": "54293639a4363c2bb4172032d65ba38636910db27d713d6acffd4f263ed350e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.06973",
    "kind": "arxiv",
    "version": 1
  }
}