Pith Number

pith:YFTBBSLF

pith:2017:YFTBBSLFHE2VGUXDICKL3XNCUX

not attested not anchored not stored refs pending

Conditioning and backward error of block-symmetric block-tridiagonal linearizations of matrix polynomials

F. M. Dopico, L. Medina, M. I. Bueno, S. Furtado

arxiv:1706.04150 v1 · 2017-06-13 · 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{YFTBBSLFHE2VGUXDICKL3XNCUX}

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	2026-05-18T00:42:24.401423Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c16610c96539355352e34094bddda2a5ec372b7e8e99e510fd1bea7591de4262

Aliases

arxiv: 1706.04150 · arxiv_version: 1706.04150v1 · doi: 10.48550/arxiv.1706.04150 · pith_short_12: YFTBBSLFHE2V · pith_short_16: YFTBBSLFHE2VGUXD · pith_short_8: YFTBBSLF

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/YFTBBSLFHE2VGUXDICKL3XNCUX \
  | 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: c16610c96539355352e34094bddda2a5ec372b7e8e99e510fd1bea7591de4262

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3da2a2e8bbefd9350ab4647128f0f6cd9ed60f9a2a2f9f8e5308092f48112b54",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-06-13T16:35:12Z",
    "title_canon_sha256": "24cf0389d58c393f49b8817dbdaf413ae6dfc71a9d9031a4111068daff225222"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.04150",
    "kind": "arxiv",
    "version": 1
  }
}