Pith Number

pith:IXM7QO37

pith:2010:IXM7QO37QXRCC7GNBSHDMN5ESX

not attested not anchored not stored refs pending

Quadratic Vector Equations

Federico Poloni

arxiv:1004.1500 v3 · 2010-04-09 · 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{IXM7QO37QXRCC7GNBSHDMN5ESX}

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	2026-05-18T02:44:32.776377Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45d9f83b7f85e2217ccd0c8e3637a495d1e32bccf1fccb4631a506474b2317b2

Aliases

arxiv: 1004.1500 · arxiv_version: 1004.1500v3 · doi: 10.48550/arxiv.1004.1500 · pith_short_12: IXM7QO37QXRC · pith_short_16: IXM7QO37QXRCC7GN · pith_short_8: IXM7QO37

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/IXM7QO37QXRCC7GNBSHDMN5ESX \
  | 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: 45d9f83b7f85e2217ccd0c8e3637a495d1e32bccf1fccb4631a506474b2317b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f559077562b97e212bb0bb45c837f9f9d28066503db59d4a7dc361df8855490b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2010-04-09T09:05:32Z",
    "title_canon_sha256": "2944b1709f591833c113e1ad4029b8eaa29e49f4a4774409262fa6eba5ae6b77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.1500",
    "kind": "arxiv",
    "version": 3
  }
}