Pith Number

pith:5QUEEEQK

pith:2019:5QUEEEQKLPVWZHY5CMC24AMANZ

not attested not anchored not stored refs pending

Vanishing Hessian, wild forms and their border VSP

Emanuele Ventura, Hang Huang, Mateusz Micha{\l}ek

arxiv:1912.13174 v2 · 2019-12-31 · 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{5QUEEEQKLPVWZHY5CMC24AMANZ}

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	2026-07-05T01:13:24.509866Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec2842120a5beb6c9f1d1305ae01806e7a0bacabeda21565b256b545f108ee52

Aliases

arxiv: 1912.13174 · arxiv_version: 1912.13174v2 · doi: 10.48550/arxiv.1912.13174 · pith_short_12: 5QUEEEQKLPVW · pith_short_16: 5QUEEEQKLPVWZHY5 · pith_short_8: 5QUEEEQK

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/5QUEEEQKLPVWZHY5CMC24AMANZ \
  | 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: ec2842120a5beb6c9f1d1305ae01806e7a0bacabeda21565b256b545f108ee52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4569063877e8de160b195acd553c9ac614e285d52b276f840652a112e6bfd3c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-12-31T05:19:39Z",
    "title_canon_sha256": "9e6c98a8a86badf1a06a44d2a45bf29c4e72ec532d0b13a3d556264e645861ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.13174",
    "kind": "arxiv",
    "version": 2
  }
}