Pith Number

pith:FG2P5GRG

pith:2016:FG2P5GRGGRFTHU7MB6M4CB2GT5

not attested not anchored not stored refs pending

Invariant Einstein metrics on Ledger-Obata spaces

Yulia Nikonorova, Yuri\u{i} Nikonorov, Zhiqi Chen

arxiv:1605.04747 v1 · 2016-05-16 · 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{FG2P5GRGGRFTHU7MB6M4CB2GT5}

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	2026-05-18T00:50:22.382189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29b4fe9a26344b33d3ec0f99c107469f4c649a255d622dc6f7a1f60c78a8fd46

Aliases

arxiv: 1605.04747 · arxiv_version: 1605.04747v1 · doi: 10.48550/arxiv.1605.04747 · pith_short_12: FG2P5GRGGRFT · pith_short_16: FG2P5GRGGRFTHU7M · pith_short_8: FG2P5GRG

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/FG2P5GRGGRFTHU7MB6M4CB2GT5 \
  | 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: 29b4fe9a26344b33d3ec0f99c107469f4c649a255d622dc6f7a1f60c78a8fd46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36bf6b3f48e990ff55eb6d74823fb6c39d5f60d0ac86421ebde0155e5d10bb1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2016-05-16T12:37:41Z",
    "title_canon_sha256": "c7338a644e3439bd35e149407cc897adeaac44f2a763718959aeb17f916b6eb8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.04747",
    "kind": "arxiv",
    "version": 1
  }
}