Pith Number

pith:YHGSN7K2

pith:2011:YHGSN7K2ZYTMHDDT26VSKXLBZ4

not attested not anchored not stored refs pending

Bianchi type A hyper-symplectic and hyper-K\"ahler metrics in 4D

Dimiter Vassilev, Jos\'e A. Santisteban, Luis C. de Andr\'es, Luis Ugarte, Marisa Fern\'andez, Stefan Ivanov

arxiv:1102.1518 v2 · 2011-02-08 · math.DG · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YHGSN7K2ZYTMHDDT26VSKXLBZ4}

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	2026-05-18T04:07:19.766640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1cd26fd5ace26c38c73d7ab255d61cf3a58a7423abbca6fbc9997c336803b39

Aliases

arxiv: 1102.1518 · arxiv_version: 1102.1518v2 · doi: 10.48550/arxiv.1102.1518 · pith_short_12: YHGSN7K2ZYTM · pith_short_16: YHGSN7K2ZYTMHDDT · pith_short_8: YHGSN7K2

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/YHGSN7K2ZYTMHDDT26VSKXLBZ4 \
  | 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: c1cd26fd5ace26c38c73d7ab255d61cf3a58a7423abbca6fbc9997c336803b39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90725b276714acaf85a2a9c57d7f962a88f2224d5518490ca87c7d811037504b",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-02-08T06:50:15Z",
    "title_canon_sha256": "b15daf682264a7007513a026355156000d93007efbb78f1128593d349f3400d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.1518",
    "kind": "arxiv",
    "version": 2
  }
}