Pith Number

pith:R4UKUQTB

pith:2014:R4UKUQTBZEC2IG7ZKNVOFH2NCN

not attested not anchored not stored refs pending

Real polynomial maps and singular open books at infinity

Mihai Tibar, Raimundo N. Ara\'ujo dos Santos, Ying Chen

arxiv:1401.8286 v1 · 2014-01-31 · 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{R4UKUQTBZEC2IG7ZKNVOFH2NCN}

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	2026-05-18T00:56:47.001974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f28aa4261c905a41bf9536ae29f4d13678fb4584130ddd53ddafd0d17a104d6

Aliases

arxiv: 1401.8286 · arxiv_version: 1401.8286v1 · doi: 10.48550/arxiv.1401.8286 · pith_short_12: R4UKUQTBZEC2 · pith_short_16: R4UKUQTBZEC2IG7Z · pith_short_8: R4UKUQTB

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/R4UKUQTBZEC2IG7ZKNVOFH2NCN \
  | 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: 8f28aa4261c905a41bf9536ae29f4d13678fb4584130ddd53ddafd0d17a104d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34eb11d908f027f203a5734ce76807f00b006df5782c8598e7c9f124a1dbff81",
    "cross_cats_sorted": [
      "math.AG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2014-01-31T20:33:41Z",
    "title_canon_sha256": "72a599a27dfdae0b7839dce4c1d973cb4805e77f7716c547c0c1f51502dc0033"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.8286",
    "kind": "arxiv",
    "version": 1
  }
}