Pith Number

pith:3CRDS3PK

pith:2014:3CRDS3PK7LLLW55VUA67H4ZWSO

not attested not anchored not stored refs pending

On bounds of matrix eigenvalues

J. Chen

arxiv:1404.3437 v1 · 2014-04-13 · 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{3CRDS3PK7LLLW55VUA67H4ZWSO}

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	2026-05-18T02:54:15.186927Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8a2396deafad6bb77b5a03df3f33693ba152759358d2d81201c83eaf18e5937

Aliases

arxiv: 1404.3437 · arxiv_version: 1404.3437v1 · doi: 10.48550/arxiv.1404.3437 · pith_short_12: 3CRDS3PK7LLL · pith_short_16: 3CRDS3PK7LLLW55V · pith_short_8: 3CRDS3PK

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/3CRDS3PK7LLLW55VUA67H4ZWSO \
  | 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: d8a2396deafad6bb77b5a03df3f33693ba152759358d2d81201c83eaf18e5937

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa4dccb87e16ac092fe8a4364168bbf37ce0f7aea37a2361792be8dc99e22435",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-04-13T22:39:00Z",
    "title_canon_sha256": "d83d2cb8bac9598750fb43b81a3281d36060b7306a32b91e19867b5db1c7721f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.3437",
    "kind": "arxiv",
    "version": 1
  }
}