Pith Number

pith:SIJVQLE4

pith:2025:SIJVQLE4FXVM5ZRCKFHIJMC5KO

not attested not anchored not stored refs pending

Observability conditions for neural state-space models with eigenvalues and their roots of unity

Andrew Gracyk

arxiv:2504.15758 v2 · 2025-04-22 · cs.LG · cs.SY · eess.SY · math.DS · 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{SIJVQLE4FXVM5ZRCKFHIJMC5KO}

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	2026-07-05T10:58:26.291407Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9213582c9c2deacee622514e84b05d538d63bd07bc3412cbda4ee6548109c32d

Aliases

arxiv: 2504.15758 · arxiv_version: 2504.15758v2 · doi: 10.48550/arxiv.2504.15758 · pith_short_12: SIJVQLE4FXVM · pith_short_16: SIJVQLE4FXVM5ZRC · pith_short_8: SIJVQLE4

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/SIJVQLE4FXVM5ZRCKFHIJMC5KO \
  | 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: 9213582c9c2deacee622514e84b05d538d63bd07bc3412cbda4ee6548109c32d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "22b7845b911fcc90c351122e09bdf2ab171d0672795b02558f01ec8a8f9ea3a8",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY",
      "math.DS",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-04-22T10:10:52Z",
    "title_canon_sha256": "41aaad2bf142eb513f783616d299bf775108ffbbd70d920f7de69e19fa52fdb9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.15758",
    "kind": "arxiv",
    "version": 2
  }
}