Pith Number

pith:QD7DBDZD

pith:2012:QD7DBDZDCFLPIW6NOVOCSZZKA6

not attested not anchored not stored refs pending

Topological implications of inhomogeneity

(2) Mathematics Department U.Strasbourg), Boudewijn F. Roukema (1), Jan J. Ostrowski (1) ((1) Torun Centre for Astronomy NCU, Vincent Blanloeil (2)

arxiv:1201.5845 v3 · 2012-01-27 · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QD7DBDZDCFLPIW6NOVOCSZZKA6}

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	2026-05-18T02:21:18.335601Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80fe308f231156f45bcd755c29672a07903a8b71ee99841ee15f25a54b5d43c5

Aliases

arxiv: 1201.5845 · arxiv_version: 1201.5845v3 · doi: 10.48550/arxiv.1201.5845 · pith_short_12: QD7DBDZDCFLP · pith_short_16: QD7DBDZDCFLPIW6N · pith_short_8: QD7DBDZD

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/QD7DBDZDCFLPIW6NOVOCSZZKA6 \
  | 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: 80fe308f231156f45bcd755c29672a07903a8b71ee99841ee15f25a54b5d43c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1772877e8ff4b9739f1950e3865ff64f07f2f8eaca122a767a36e0fc02c66b13",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-01-27T17:40:41Z",
    "title_canon_sha256": "470bf181830460c9aea5c1a0ac4f2c60ff5f4b8b832906e06a8646f93086f50e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.5845",
    "kind": "arxiv",
    "version": 3
  }
}