Pith Number

pith:MAOJ5JFK

pith:2017:MAOJ5JFK2D6TTYBCLLHKPE6DT7

not attested not anchored not stored refs pending

Robustness and perturbations of minimal bases II: The case with given row degrees

Froil\'an M. Dopico, Paul Van Dooren

arxiv:1712.03816 v1 · 2017-12-07 · 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{MAOJ5JFK2D6TTYBCLLHKPE6DT7}

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	2026-05-18T00:28:19.880376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

601c9ea4aad0fd39e0225acea793c39fd238d5c4d2b6961ed69e604f883e17e1

Aliases

arxiv: 1712.03816 · arxiv_version: 1712.03816v1 · doi: 10.48550/arxiv.1712.03816 · pith_short_12: MAOJ5JFK2D6T · pith_short_16: MAOJ5JFK2D6TTYBC · pith_short_8: MAOJ5JFK

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/MAOJ5JFK2D6TTYBCLLHKPE6DT7 \
  | 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: 601c9ea4aad0fd39e0225acea793c39fd238d5c4d2b6961ed69e604f883e17e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f25dad9d34279d19fac910248746378868cdf34d37d4a12266c5b5c000c24bbb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-12-07T19:04:49Z",
    "title_canon_sha256": "dd5be9f126d0c443cf8c4057df54c5617cd93848b48d4c0ed92041a18066b89c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.03816",
    "kind": "arxiv",
    "version": 1
  }
}