Pith Number

pith:LTSY5I6B

pith:2017:LTSY5I6BDXMFWDS45UGSD2BLOZ

not attested not anchored not stored refs pending

Balanced truncation model order reduction in limited time intervals for large systems

Patrick K\"urschner

arxiv:1707.02839 v2 · 2017-07-10 · 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{LTSY5I6BDXMFWDS45UGSD2BLOZ}

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	2026-05-18T00:26:46.009273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ce58ea3c11dd85b0e5ced0d21e82b765b561975b971f09cb60f361569ac0258

Aliases

arxiv: 1707.02839 · arxiv_version: 1707.02839v2 · doi: 10.48550/arxiv.1707.02839 · pith_short_12: LTSY5I6BDXMF · pith_short_16: LTSY5I6BDXMFWDS4 · pith_short_8: LTSY5I6B

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/LTSY5I6BDXMFWDS45UGSD2BLOZ \
  | 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: 5ce58ea3c11dd85b0e5ced0d21e82b765b561975b971f09cb60f361569ac0258

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6b070e3664c621cd60966ebedd124497ccd18bfb39f0328b2fed77b528e79ee1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-07-10T13:21:45Z",
    "title_canon_sha256": "e8a0078f7de918f4a33848b9ba7a460b330c571dec7904bbf8bb7550b64f9b47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.02839",
    "kind": "arxiv",
    "version": 2
  }
}