Pith Number

pith:3GV6C7BW

pith:2019:3GV6C7BWY2FIPHJUDAMV2CNQVP

not attested not anchored not stored refs pending

The LAPW method with eigendecomposition based on the Hari--Zimmermann generalized hyperbolic SVD

Edoardo Di Napoli, Gayatri \v{C}aklovi\'c, Sanja Singer, Vedran Novakovi\'c

arxiv:1907.08560 v2 · 2019-07-19 · math.NA · cs.MS · cs.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{3GV6C7BWY2FIPHJUDAMV2CNQVP}

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	2026-07-05T01:36:48.730045Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9abe17c36c68a879d3418195d09b0abcb31eec4cc2372b0fd8e663ce05be9fc

Aliases

arxiv: 1907.08560 · arxiv_version: 1907.08560v2 · doi: 10.48550/arxiv.1907.08560 · pith_short_12: 3GV6C7BWY2FI · pith_short_16: 3GV6C7BWY2FIPHJU · pith_short_8: 3GV6C7BW

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/3GV6C7BWY2FIPHJUDAMV2CNQVP \
  | 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: d9abe17c36c68a879d3418195d09b0abcb31eec4cc2372b0fd8e663ce05be9fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eab68d8bf552103343f058428e9903b8ca2c80cf252f66fff1d0a5372aae0cf6",
    "cross_cats_sorted": [
      "cs.MS",
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-07-19T16:13:30Z",
    "title_canon_sha256": "ff46272d14c7bf3454d82cbd38c8c272dc70a4757ef917ef30bd60fee9688575"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.08560",
    "kind": "arxiv",
    "version": 2
  }
}