Pith Number

pith:S6DAH4GA

pith:2014:S6DAH4GAC5646JUWKJDORJUXEY

not attested not anchored not stored refs pending

Identification of parameterized gray-box state-space systems: from a black-box linear time-invariant representation to a structured one: detailed derivation of the gradients involved in the cost functions

Guillaume Merc\`ere, Jos\'e Ramos, Olivier Prot

arxiv:1406.0623 v1 · 2014-06-03 · 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{S6DAH4GAC5646JUWKJDORJUXEY}

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	2026-05-18T02:50:33.175358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

978603f0c0177dcf26965246e8a697263effca78b7062dd24f3b17e9a7502d2e

Aliases

arxiv: 1406.0623 · arxiv_version: 1406.0623v1 · doi: 10.48550/arxiv.1406.0623 · pith_short_12: S6DAH4GAC564 · pith_short_16: S6DAH4GAC5646JUW · pith_short_8: S6DAH4GA

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/S6DAH4GAC5646JUWKJDORJUXEY \
  | 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: 978603f0c0177dcf26965246e8a697263effca78b7062dd24f3b17e9a7502d2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c23de34fcd8a6031a6430491aebad9f75bda589274b63ac9d09002a5d83c6804",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2014-06-03T08:35:33Z",
    "title_canon_sha256": "12074e25bfd6066e463f571d2d5b75e73bd872850474662bc52fafaac2058660"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.0623",
    "kind": "arxiv",
    "version": 1
  }
}