Pith Number

pith:CSRHHZRK

pith:2011:CSRHHZRKWID4LBVZ5WOGPWKBC6

not attested not anchored not stored refs pending

Numerical Optimization of Eigenvalues of Hermitian Matrix Functions

Emre Alper Yildirim, Emre Mengi, Mustafa Kilic

arxiv:1109.2080 v2 · 2011-09-09 · 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{CSRHHZRKWID4LBVZ5WOGPWKBC6}

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	2026-05-18T01:15:15.672215Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14a273e62ab207c586b9ed9c67d9411792451a790e9c05872d174fd432d05a20

Aliases

arxiv: 1109.2080 · arxiv_version: 1109.2080v2 · doi: 10.48550/arxiv.1109.2080 · pith_short_12: CSRHHZRKWID4 · pith_short_16: CSRHHZRKWID4LBVZ · pith_short_8: CSRHHZRK

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/CSRHHZRKWID4LBVZ5WOGPWKBC6 \
  | 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: 14a273e62ab207c586b9ed9c67d9411792451a790e9c05872d174fd432d05a20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce67605125d34ec3e34c1a626f0199fad5533029508a4c474b8786e01a93e7e9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2011-09-09T17:57:07Z",
    "title_canon_sha256": "41233f40a113a269a8bb010cb68b903d8fe2711e53c81f28f66361cc5a6f2709"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.2080",
    "kind": "arxiv",
    "version": 2
  }
}