Pith Number

pith:UQ7435ER

pith:2019:UQ7435ERSQODQR5UMW22LRWJJJ

not attested not anchored not stored refs pending

Euclidean distance degree of projective varieties

Botong Wang, Jose Israel Rodriguez, Laurentiu G. Maxim

arxiv:1901.05550 v2 · 2019-01-16 · math.AG · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UQ7435ERSQODQR5UMW22LRWJJJ}

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	2026-05-17T23:55:16.811512Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a43fcdf491941c3847b465b5a5c6c94a7b4d02e5edfc7007098fca0716ad4b76

Aliases

arxiv: 1901.05550 · arxiv_version: 1901.05550v2 · doi: 10.48550/arxiv.1901.05550 · pith_short_12: UQ7435ERSQOD · pith_short_16: UQ7435ERSQODQR5U · pith_short_8: UQ7435ER

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/UQ7435ERSQODQR5UMW22LRWJJJ \
  | 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: a43fcdf491941c3847b465b5a5c6c94a7b4d02e5edfc7007098fca0716ad4b76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3e7159c3547e45de80f29807a22f24f1d88b41674e8e5d204ff4469b18c085b",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-01-16T22:26:19Z",
    "title_canon_sha256": "4825922116a8fa9460bddde26539b95877ada2bf9a5899fd92015993e12450c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.05550",
    "kind": "arxiv",
    "version": 2
  }
}