Pith Number

pith:VDKXDHFC

pith:2010:VDKXDHFCGQOFDMIQD5YVNH752B

not attested not anchored not stored refs pending

On real determinantal quartics

Alex Degtyarev, Ilia Itenberg

arxiv:1007.3028 v1 · 2010-07-18 · 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{VDKXDHFCGQOFDMIQD5YVNH752B}

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	2026-05-18T01:05:46.801259Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8d5719ca2341c51b1101f71569ffdd04daad833d8cde7ed0bf340f871d55957

Aliases

arxiv: 1007.3028 · arxiv_version: 1007.3028v1 · doi: 10.48550/arxiv.1007.3028 · pith_short_12: VDKXDHFCGQOF · pith_short_16: VDKXDHFCGQOFDMIQ · pith_short_8: VDKXDHFC

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/VDKXDHFCGQOFDMIQD5YVNH752B \
  | 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: a8d5719ca2341c51b1101f71569ffdd04daad833d8cde7ed0bf340f871d55957

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b584c3ca3cf23bf45f094ea15ec9d4fedbb533b880ba4d6d9940e92ba859164b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2010-07-18T18:24:21Z",
    "title_canon_sha256": "f7cbba26c3406e53932eb218791f8bf17f10a0cc1c93c55f5d80eacf4ca96792"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.3028",
    "kind": "arxiv",
    "version": 1
  }
}