Pith Number

pith:6HOJMWE6

pith:2016:6HOJMWE6QJY4A2JGC6ZTCLMQBW

not attested not anchored not stored refs pending

Regularization and Interpolation of Positive Matrices

Allen Tannenbaum, Kaoru Yamamoto, Lipeng Ning, Tryphon T. Georgiou, Yongxin Chen

arxiv:1611.07945 v1 · 2016-11-23 · 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{6HOJMWE6QJY4A2JGC6ZTCLMQBW}

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	2026-05-18T00:56:59.501169Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1dc96589e8271c0692617b3312d900d994195aa703841ac3b45bdd70625fd51

Aliases

arxiv: 1611.07945 · arxiv_version: 1611.07945v1 · doi: 10.48550/arxiv.1611.07945 · pith_short_12: 6HOJMWE6QJY4 · pith_short_16: 6HOJMWE6QJY4A2JG · pith_short_8: 6HOJMWE6

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/6HOJMWE6QJY4A2JGC6ZTCLMQBW \
  | 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: f1dc96589e8271c0692617b3312d900d994195aa703841ac3b45bdd70625fd51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a101ab6fa2713e8c634e1de7dcabd04278993bb45e55e3e1170a75f36e7e528",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2016-11-23T19:23:09Z",
    "title_canon_sha256": "a7b95b3794d683bb920e1334e4df5486db8818900b3c2760e55eb0c761f92574"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.07945",
    "kind": "arxiv",
    "version": 1
  }
}