Pith Number

pith:2AQB2L5B

pith:2019:2AQB2L5BSPZDSAWAOJSM43SAMW

not attested not anchored not stored refs pending

Finite determination of accessibility and geometric structure of singular points for nonlinear systems

Mohammad Amin Sarafrazi, \"Ulle Kotta, Zbigniew Bartosiewicz

arxiv:1908.02905 v1 · 2019-08-08 · math.OC · cs.CC · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2AQB2L5BSPZDSAWAOJSM43SAMW}

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	2026-07-04T23:52:24.755605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0201d2fa193f23902c07264ce6e40659c3011b52bab9f4aa323a968474acaa9

Aliases

arxiv: 1908.02905 · arxiv_version: 1908.02905v1 · doi: 10.48550/arxiv.1908.02905 · pith_short_12: 2AQB2L5BSPZD · pith_short_16: 2AQB2L5BSPZDSAWA · pith_short_8: 2AQB2L5B

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/2AQB2L5BSPZDSAWAOJSM43SAMW \
  | 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: d0201d2fa193f23902c07264ce6e40659c3011b52bab9f4aa323a968474acaa9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f9fa5a4914b43ffd8b7f92ebd85419e0ab496e92588a61e7ba2cc22ac4e59e7",
    "cross_cats_sorted": [
      "cs.CC",
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-08-08T02:10:02Z",
    "title_canon_sha256": "3cf9024cb2fa0da92b4e49763af390840199c52e8122879c012ed8e681ce21d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02905",
    "kind": "arxiv",
    "version": 1
  }
}