Pith Number

pith:XDIPLREU

pith:2007:XDIPLREUA6M5UD3LOQK4YF5NLK

not attested not anchored not stored refs pending

On algebraic time-derivative estimation and deadbeat state reconstruction

J\'er\^ome Jouffroy, Johann Reger

arxiv:0710.0010 v3 · 2007-09-28 · 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{XDIPLREUA6M5UD3LOQK4YF5NLK}

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	2026-05-18T00:17:30.978697Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8d0f5c4940799da0f6b7415cc17ad5aad97b6b62e818172dc827b63532c7335

Aliases

arxiv: 0710.0010 · arxiv_version: 0710.0010v3 · doi: 10.48550/arxiv.0710.0010 · pith_short_12: XDIPLREUA6M5 · pith_short_16: XDIPLREUA6M5UD3L · pith_short_8: XDIPLREU

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/XDIPLREUA6M5UD3LOQK4YF5NLK \
  | 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: b8d0f5c4940799da0f6b7415cc17ad5aad97b6b62e818172dc827b63532c7335

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a3f93b8c170ec10ab1f75e4527dac83db510002e824b04c86e9e7a93cf21eda",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2007-09-28T21:54:56Z",
    "title_canon_sha256": "b1f0b37fa3e26835dd3969f30d671e627898c3b47929dc4cf58d87d32fe10e8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0710.0010",
    "kind": "arxiv",
    "version": 3
  }
}