Pith Number

pith:XHUMPMLI

pith:2017:XHUMPMLI7PN76C3VATUDZUOJMG

not attested not anchored not stored refs pending

Universal quadratic forms over multiquadratic fields

Josef Svoboda, V\'it\v{e}zslav Kala

arxiv:1703.03185 v1 · 2017-03-09 · math.NT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XHUMPMLI7PN76C3VATUDZUOJMG}

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	2026-05-17T23:55:43.343201Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9e8c7b168fbdbff0b7504e83cd1c9618dbf4988c0c356680c1460eca2bed8f1

Aliases

arxiv: 1703.03185 · arxiv_version: 1703.03185v1 · doi: 10.48550/arxiv.1703.03185 · pith_short_12: XHUMPMLI7PN7 · pith_short_16: XHUMPMLI7PN76C3V · pith_short_8: XHUMPMLI

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/XHUMPMLI7PN76C3VATUDZUOJMG \
  | 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: b9e8c7b168fbdbff0b7504e83cd1c9618dbf4988c0c356680c1460eca2bed8f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8997b59d376c8e3eb46b2c43e92da4f890a7072c0630b6e10fd991297aaf0ad0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2017-03-09T09:11:55Z",
    "title_canon_sha256": "4ba7cc125a2028e5be121eed3b766aa745177bd8c89061c1ee9ed1de4d5fb7dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.03185",
    "kind": "arxiv",
    "version": 1
  }
}