Pith Number

pith:EIIQNW2A

pith:2019:EIIQNW2A2QAB4NRUVBZJCUBJRT

not attested not anchored not stored refs pending

On the Hilbert scheme of linearly normal curves in $\mathbb{P}^r$ of relatively high degree

Changho Keem, Claudio Fontanari, Edoardo Ballico

arxiv:1904.07716 v2 · 2019-04-15 · 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{EIIQNW2A2QAB4NRUVBZJCUBJRT}

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	2026-05-17T23:41:42.375625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

221106db40d4001e3634a8729150298cf9aea687289849fe1175eed9505a8f16

Aliases

arxiv: 1904.07716 · arxiv_version: 1904.07716v2 · doi: 10.48550/arxiv.1904.07716 · pith_short_12: EIIQNW2A2QAB · pith_short_16: EIIQNW2A2QAB4NRU · pith_short_8: EIIQNW2A

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/EIIQNW2A2QAB4NRUVBZJCUBJRT \
  | 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: 221106db40d4001e3634a8729150298cf9aea687289849fe1175eed9505a8f16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3145e6825dcf81fdb0c3b5389e8692472a6668a8523b42181aeebe64214c9d98",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-04-15T16:41:27Z",
    "title_canon_sha256": "6cb23808c5a8d0a36611897744074a71542a1d405b930b8392c64d0058127e31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.07716",
    "kind": "arxiv",
    "version": 2
  }
}