Pith Number

pith:QNEWOXWY

pith:2008:QNEWOXWYMETOBN32PVJYV6PQAW

not attested not anchored not stored refs pending

Mixed 3-Sasakian structures and curvature

Angelo V. Caldarella, Anna Maria Pastore

arxiv:0803.1953 v1 · 2008-03-13 · 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{QNEWOXWYMETOBN32PVJYV6PQAW}

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	2026-05-18T04:07:06.997541Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8349675ed86126e0b77a7d538af9f0059c51c3093908619fd2573869814edd97

Aliases

arxiv: 0803.1953 · arxiv_version: 0803.1953v1 · doi: 10.48550/arxiv.0803.1953 · pith_short_12: QNEWOXWYMETO · pith_short_16: QNEWOXWYMETOBN32 · pith_short_8: QNEWOXWY

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/QNEWOXWYMETOBN32PVJYV6PQAW \
  | 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: 8349675ed86126e0b77a7d538af9f0059c51c3093908619fd2573869814edd97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a09f836ae15a5fb8012d7fde413c02a0df6340f56426420dcd674132a0c0bafa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2008-03-13T12:35:08Z",
    "title_canon_sha256": "990bcbe71b2f8a98f2312fc4e45d6a8f79d601a2c8aed0462fad292a1365a645"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0803.1953",
    "kind": "arxiv",
    "version": 1
  }
}