Pith Number

pith:JD56IEGO

pith:2025:JD56IEGOBH7PZOT3RUKAECPZGW

not attested not anchored not stored refs pending

Quadratic forms and their duals

Hans Havlicek

arxiv:2506.23613 v1 · 2025-06-30 · 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{JD56IEGOBH7PZOT3RUKAECPZGW}

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	2026-06-23T02:13:15.749947Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

48fbe410ce09fefcba7b8d140209f9359808f771fbab31794e0b9dc4c2e66754

Aliases

arxiv: 2506.23613 · arxiv_version: 2506.23613v1 · doi: 10.48550/arxiv.2506.23613 · pith_short_12: JD56IEGOBH7P · pith_short_16: JD56IEGOBH7PZOT3 · pith_short_8: JD56IEGO

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/JD56IEGOBH7PZOT3RUKAECPZGW \
  | 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: 48fbe410ce09fefcba7b8d140209f9359808f771fbab31794e0b9dc4c2e66754

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f836d04ee18560bac7b6777db41388a041637e7f3e1565e7537970c2d5be906",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2025-06-30T08:18:07Z",
    "title_canon_sha256": "74827e8fc55b6fc5cd647e9456fdd8db0e2dc72b604debe13816e7723f5bd485"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.23613",
    "kind": "arxiv",
    "version": 1
  }
}