Pith Number

pith:WHHS3D4C

pith:2018:WHHS3D4C4357CLH5BHAPE4BBLL

not attested not anchored not stored refs pending

Computing delay Lyapunov matrices and H2 norms for large-scale problems

Bin Zhou, Wim Michiels

arxiv:1808.08604 v1 · 2018-08-26 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WHHS3D4C4357CLH5BHAPE4BBLL}

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	2026-05-18T00:07:13.907947Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1cf2d8f82e6fbf12cfd09c0f270215adb04f178e37eedade29958e8ca300b62

Aliases

arxiv: 1808.08604 · arxiv_version: 1808.08604v1 · doi: 10.48550/arxiv.1808.08604 · pith_short_12: WHHS3D4C4357 · pith_short_16: WHHS3D4C4357CLH5 · pith_short_8: WHHS3D4C

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/WHHS3D4C4357CLH5BHAPE4BBLL \
  | 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: b1cf2d8f82e6fbf12cfd09c0f270215adb04f178e37eedade29958e8ca300b62

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dba97fbbf1cf696dbf719b740995dd2c00ffbe9437fcd206b422d811fe244ee9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-08-26T18:11:02Z",
    "title_canon_sha256": "ddd0ce64e3f939367e163ca427c13ad8767857667f74c5a17c9c31eecbf9967f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.08604",
    "kind": "arxiv",
    "version": 1
  }
}