Pith Number

pith:DPPC4JSU

pith:2019:DPPC4JSUVCRZUGJDPSPFDNEKEY

not attested not anchored not stored refs pending

Deep Lyapunov Function: Automatic Stability Analysis for Dynamical Systems

Arash Mehrjou, Bernhard Sch\"olkopf

arxiv:1901.08403 v1 · 2019-01-24 · math.DS

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

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	2026-05-17T23:55:35.568771Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1bde2e2654a8a39a19237c9e51b48a26343641fae096a54c8bfd53afb67c8eff

Aliases

arxiv: 1901.08403 · arxiv_version: 1901.08403v1 · doi: 10.48550/arxiv.1901.08403 · pith_short_12: DPPC4JSUVCRZ · pith_short_16: DPPC4JSUVCRZUGJD · pith_short_8: DPPC4JSU

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/DPPC4JSUVCRZUGJDPSPFDNEKEY \
  | 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: 1bde2e2654a8a39a19237c9e51b48a26343641fae096a54c8bfd53afb67c8eff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ba72275581246cadf8504a61a351204a698ad82c81251656558d226bc968fca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2019-01-24T13:48:04Z",
    "title_canon_sha256": "11d09968a10ea870a25b68514a18bfad3a4f69f32d51a19921d8a2df7dc249ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.08403",
    "kind": "arxiv",
    "version": 1
  }
}