Pith Number

pith:BNLOPQXU

pith:2009:BNLOPQXUQSVHIKAC4LSVMVXO75

not attested not anchored not stored refs pending

The residual gravity acceleration effect in the Poincare dodecahedral space

Boudewijn F. Roukema, Piotr T. Rozanski (Torun Centre for Astronomy)

arxiv:0902.3402 v4 · 2009-02-19 · astro-ph.CO · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BNLOPQXUQSVHIKAC4LSVMVXO75}

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	2026-05-18T02:14:46.884183Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b56e7c2f484aa742802e2e55656eeff63324db48febd8acd8439796d0774111

Aliases

arxiv: 0902.3402 · arxiv_version: 0902.3402v4 · doi: 10.48550/arxiv.0902.3402 · pith_short_12: BNLOPQXUQSVH · pith_short_16: BNLOPQXUQSVHIKAC · pith_short_8: BNLOPQXU

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/BNLOPQXUQSVHIKAC4LSVMVXO75 \
  | 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: 0b56e7c2f484aa742802e2e55656eeff63324db48febd8acd8439796d0774111

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19fc04d2f0af1dfed8a9fd2aa28d553d79c359cee17b2f6e1d9660f2188022f3",
    "cross_cats_sorted": [
      "math.GT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-02-19T16:43:42Z",
    "title_canon_sha256": "b2999ffd45e17ac6b19a0f398567d47f1821bb871160015f90fc01900437eef4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.3402",
    "kind": "arxiv",
    "version": 4
  }
}