Pith Number

pith:FN5DCDCU

pith:2015:FN5DCDCUMCTYQQQELLTT63RH6J

not attested not anchored not stored refs pending

Hypersurfaces with H_{r+1}=0 in H x R

Barbara Nelli, Maria Fernanda Elbert, Walcy Santos

arxiv:1503.07489 v2 · 2015-03-25 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FN5DCDCUMCTYQQQELLTT63RH6J}

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	2026-05-18T01:35:26.807980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b7a310c5460a78842045ae73f6e27f260be8efe50908f54677135eeae140142

Aliases

arxiv: 1503.07489 · arxiv_version: 1503.07489v2 · doi: 10.48550/arxiv.1503.07489 · pith_short_12: FN5DCDCUMCTY · pith_short_16: FN5DCDCUMCTYQQQE · pith_short_8: FN5DCDCU

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/FN5DCDCUMCTYQQQELLTT63RH6J \
  | 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: 2b7a310c5460a78842045ae73f6e27f260be8efe50908f54677135eeae140142

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "92a333094f44689b4f5f0ea73f83dd50e4864e678c80c1c15287e43e3557654e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2015-03-25T18:51:29Z",
    "title_canon_sha256": "9f01e19e79b3c8cf29b59e8910c7a8fb3502b78183d6070999728533d8167c14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.07489",
    "kind": "arxiv",
    "version": 2
  }
}