Pith Number

pith:GF7PQLDY

pith:2017:GF7PQLDYFD6GNNJHWKZKG7JRXP

not attested not anchored not stored refs pending

Balanced Truncation Model Reduction of Nonstationary Systems Interconnected over Arbitrary Graphs

Dany Abou Jaoude, Mazen Farhood

arxiv:1708.03828 v1 · 2017-08-12 · 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{GF7PQLDYFD6GNNJHWKZKG7JRXP}

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	2026-05-18T00:38:07.780868Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

317ef82c7828fc66b527b2b2a37d31bbfaa645d9d5163d2ae0ec50229dcda2ea

Aliases

arxiv: 1708.03828 · arxiv_version: 1708.03828v1 · doi: 10.48550/arxiv.1708.03828 · pith_short_12: GF7PQLDYFD6G · pith_short_16: GF7PQLDYFD6GNNJH · pith_short_8: GF7PQLDY

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/GF7PQLDYFD6GNNJHWKZKG7JRXP \
  | 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: 317ef82c7828fc66b527b2b2a37d31bbfaa645d9d5163d2ae0ec50229dcda2ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef2278cb8b415a3e69693de3652e3339ccc806c027b85e398b045941e483a381",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-08-12T23:39:15Z",
    "title_canon_sha256": "49450cd38ae183f3390b6fc9b5c20a69e60624a9cfb1ab5444894691fb7ae400"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.03828",
    "kind": "arxiv",
    "version": 1
  }
}