Pith Number

pith:WNZUWB5W

pith:2017:WNZUWB5WEO6UBTKINNRZU5UXNX

not attested not anchored not stored refs pending

Eigenvalues of symmetric tridiagonal interval matrices revisited

Milan Hlad\'ik

arxiv:1704.03670 v2 · 2017-04-12 · 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{WNZUWB5WEO6UBTKINNRZU5UXNX}

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	2026-05-18T00:11:18.954074Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3734b07b623bd40cd486b639a76976dfd9bfb40b5637032cffa3fbb1b87723c

Aliases

arxiv: 1704.03670 · arxiv_version: 1704.03670v2 · doi: 10.48550/arxiv.1704.03670 · pith_short_12: WNZUWB5WEO6U · pith_short_16: WNZUWB5WEO6UBTKI · pith_short_8: WNZUWB5W

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/WNZUWB5WEO6UBTKINNRZU5UXNX \
  | 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: b3734b07b623bd40cd486b639a76976dfd9bfb40b5637032cffa3fbb1b87723c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6499fee16202afc1f12a4cecebdacc00d6faac1e17f7cabc7165a2ff626eb0c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2017-04-12T09:30:35Z",
    "title_canon_sha256": "e433cd004f657afd966bb35a421e617f156481d728fc54acfdab28d42a5c6c3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.03670",
    "kind": "arxiv",
    "version": 2
  }
}