Pith Number

pith:W736QTB4

pith:2011:W736QTB4ZB2UOA74AT35W7IHP6

not attested not anchored not stored refs pending

Einstein four-manifolds with skew torsion

Ana Cristina Ferreira

arxiv:1106.4947 v1 · 2011-06-24 · 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{W736QTB4ZB2UOA74AT35W7IHP6}

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	2026-05-18T02:01:31.127983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7f7e84c3cc8754703fc04f7db7d077fbe210fd39e927d7c055f34416c1aea05

Aliases

arxiv: 1106.4947 · arxiv_version: 1106.4947v1 · doi: 10.48550/arxiv.1106.4947 · pith_short_12: W736QTB4ZB2U · pith_short_16: W736QTB4ZB2UOA74 · pith_short_8: W736QTB4

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/W736QTB4ZB2UOA74AT35W7IHP6 \
  | 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: b7f7e84c3cc8754703fc04f7db7d077fbe210fd39e927d7c055f34416c1aea05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ccd59fe90708b5b5fb0274042ce7059d82e1b43715af4b90ff854c8eaa6fb34",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-06-24T12:10:41Z",
    "title_canon_sha256": "9f26f5d5069811744d857e8537eeed10f1d1b300d83419c96d1e250425df326b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.4947",
    "kind": "arxiv",
    "version": 1
  }
}