Pith Number

pith:7AYXEQZT

pith:2015:7AYXEQZTJOFJH3HISTHCN6ULCA

not attested not anchored not stored refs pending

The Locus of Plane Quartics with A Hyperflex

Xuntao Hu

arxiv:1509.07689 v3 · 2015-09-25 · 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{7AYXEQZTJOFJH3HISTHCN6ULCA}

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	2026-05-18T00:42:13.515616Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8317243334b8a93ece894ce26fa8b102ed027adcad59ebead180cec644637dc

Aliases

arxiv: 1509.07689 · arxiv_version: 1509.07689v3 · doi: 10.48550/arxiv.1509.07689 · pith_short_12: 7AYXEQZTJOFJ · pith_short_16: 7AYXEQZTJOFJH3HI · pith_short_8: 7AYXEQZT

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/7AYXEQZTJOFJH3HISTHCN6ULCA \
  | 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: f8317243334b8a93ece894ce26fa8b102ed027adcad59ebead180cec644637dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a75d342f355cc0e024a65a5a2f62a2a6ab4228c1ccb011059e5af6c475ba0007",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-09-25T11:50:50Z",
    "title_canon_sha256": "8955e52db3045003f4d0d9fa5291b1c3ee3b96f64f25d3a043480c76b84021ff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.07689",
    "kind": "arxiv",
    "version": 3
  }
}