Pith Number

pith:T2VQDKYE

pith:2013:T2VQDKYEHXH7WN22V6G6DO6M3K

not attested not anchored not stored refs pending

Computing Real Roots of Real Polynomials

Kurt Mehlhorn, Michael Sagraloff

arxiv:1308.4088 v2 · 2013-08-19 · cs.SC · cs.NA · 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{T2VQDKYEHXH7WN22V6G6DO6M3K}

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	2026-05-18T02:25:04.880272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9eab01ab043dcffb375aaf8de1bbccdaa5ca6d6339d0f4d5be8f3ea210cad9b9

Aliases

arxiv: 1308.4088 · arxiv_version: 1308.4088v2 · doi: 10.48550/arxiv.1308.4088 · pith_short_12: T2VQDKYEHXH7 · pith_short_16: T2VQDKYEHXH7WN22 · pith_short_8: T2VQDKYE

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/T2VQDKYEHXH7WN22V6G6DO6M3K \
  | 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: 9eab01ab043dcffb375aaf8de1bbccdaa5ca6d6339d0f4d5be8f3ea210cad9b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8bf8699497b68dc8bde991e7d23e85f70b27218b9e1fc59cb0430ed56944129",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SC",
    "submitted_at": "2013-08-19T18:14:39Z",
    "title_canon_sha256": "d016ed466d22408cbbcf8796fa60851f337ebb38cefaf96b6406c55030de6c4b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.4088",
    "kind": "arxiv",
    "version": 2
  }
}