Pith Number

pith:QG6YEOAJ

pith:2016:QG6YEOAJVRI2RUUNXHBYLRSNEF

not attested not anchored not stored refs pending

Isotropy of 5-dimensional quadratic forms over the function field of a quadric in characteristic 2

Ahmed Laghribi, Andrew Dolphin

arxiv:1602.07093 v1 · 2016-02-23 · math.AC · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QG6YEOAJVRI2RUUNXHBYLRSNEF}

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	2026-05-18T01:20:07.183500Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81bd823809ac51a8d28db9c385c64d2177546b9be84cd39a9f19062f8d7ce695

Aliases

arxiv: 1602.07093 · arxiv_version: 1602.07093v1 · doi: 10.48550/arxiv.1602.07093 · pith_short_12: QG6YEOAJVRI2 · pith_short_16: QG6YEOAJVRI2RUUN · pith_short_8: QG6YEOAJ

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/QG6YEOAJVRI2RUUNXHBYLRSNEF \
  | 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: 81bd823809ac51a8d28db9c385c64d2177546b9be84cd39a9f19062f8d7ce695

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc51bc3b790bee5c021988664731d17b6c4a1e34535a78c76922f20c8eb8d2f3",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AC",
    "submitted_at": "2016-02-23T09:05:18Z",
    "title_canon_sha256": "0abaefed173827d0e8d6297dde8b98c883ff1676fdfb8b78c8ec7ad6ae3b40db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.07093",
    "kind": "arxiv",
    "version": 1
  }
}