Pith Number

pith:BJPSVRCR

pith:2016:BJPSVRCRD5ASXBNRLW7A5S3UUC

not attested not anchored not stored refs pending

On quadratic polynomial mappings $f: \Bbb C^2 \to \Bbb C^2$

M. Farnik, Z. Jelonek

arxiv:1606.08752 v2 · 2016-06-28 · math.CV · 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{BJPSVRCRD5ASXBNRLW7A5S3UUC}

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	2026-05-18T00:58:03.993797Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a5f2ac4511f412b85b15dbe0ecb74a0b5886761bdf42aa8d9219b078f755164

Aliases

arxiv: 1606.08752 · arxiv_version: 1606.08752v2 · doi: 10.48550/arxiv.1606.08752 · pith_short_12: BJPSVRCRD5AS · pith_short_16: BJPSVRCRD5ASXBNR · pith_short_8: BJPSVRCR

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/BJPSVRCRD5ASXBNRLW7A5S3UUC \
  | 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: 0a5f2ac4511f412b85b15dbe0ecb74a0b5886761bdf42aa8d9219b078f755164

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3508aa89f69197ab42698b0c20f823160b7504b96495af992db79a5a932c15e4",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2016-06-28T15:10:09Z",
    "title_canon_sha256": "b0cbce2f1e5321ce73755dbf828b0f59ea61efe9cd072ca3075c893b69507d15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.08752",
    "kind": "arxiv",
    "version": 2
  }
}