Pith Number

pith:UEYPNU4I

pith:2017:UEYPNU4ITSVWXPMGI3OV3EH6HE

not attested not anchored not stored refs pending

On Zariski's multiplicity problem at infinity

J. Edson Sampaio

arxiv:1709.03373 v2 · 2017-09-07 · math.AG · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UEYPNU4ITSVWXPMGI3OV3EH6HE}

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	2026-05-17T23:57:15.629882Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a130f6d3889cab6bbd8646dd5d90fe392514decf22c50a579e5191c2137e2953

Aliases

arxiv: 1709.03373 · arxiv_version: 1709.03373v2 · doi: 10.48550/arxiv.1709.03373 · pith_short_12: UEYPNU4ITSVW · pith_short_16: UEYPNU4ITSVWXPMG · pith_short_8: UEYPNU4I

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/UEYPNU4ITSVWXPMGI3OV3EH6HE \
  | 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: a130f6d3889cab6bbd8646dd5d90fe392514decf22c50a579e5191c2137e2953

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b98cad73fdb64e2b09b1ee146662392571037d207c36a36bab3097ea7184935",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-09-07T21:27:32Z",
    "title_canon_sha256": "37999efae0d21ff029feec39dcda6531d590edbb133031731d9fda38efced779"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.03373",
    "kind": "arxiv",
    "version": 2
  }
}