Pith Number

pith:WRMV7U5H

pith:2016:WRMV7U5HEKPJF6EVYTXUKHBFMD

not attested not anchored not stored refs pending

Diagonal Riccati Stability and the Hadamard Product

Alexander Aleksandrov, Anna Vorob'eva, Oliver Mason

arxiv:1612.06587 v1 · 2016-12-20 · 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{WRMV7U5HEKPJF6EVYTXUKHBFMD}

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	2026-05-18T00:54:25.317037Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4595fd3a7229e92f895c4ef451c2560c5f079bc722858caec8932aee9d9b427

Aliases

arxiv: 1612.06587 · arxiv_version: 1612.06587v1 · doi: 10.48550/arxiv.1612.06587 · pith_short_12: WRMV7U5HEKPJ · pith_short_16: WRMV7U5HEKPJF6EV · pith_short_8: WRMV7U5H

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/WRMV7U5HEKPJF6EVYTXUKHBFMD \
  | 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: b4595fd3a7229e92f895c4ef451c2560c5f079bc722858caec8932aee9d9b427

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff85a034cfe4e1bfc17aca99ff0623a339b4c47458eb4dd5bbedad07c3a16432",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2016-12-20T10:21:32Z",
    "title_canon_sha256": "0a94d1fd6a42c2a61003b4fa9779e2ac4e892b7b9c59e45acae63fc22a309008"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.06587",
    "kind": "arxiv",
    "version": 1
  }
}