Pith Number

pith:ENFZNFOZ

pith:2014:ENFZNFOZSM4Z4NIJF5SVYKZT7S

not attested not anchored not stored refs pending

The structure of the Ricci tensor on locally homogeneous Lorentzian gradient Ricci solitons

E. Garc\'ia-R\'io, M. Brozos-V\'azquez, P. Gilkey, S. Gavino-Fern\'andez

arxiv:1403.4400 v4 · 2014-03-18 · 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{ENFZNFOZSM4Z4NIJF5SVYKZT7S}

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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	2026-05-18T01:15:15.486540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

234b9695d993399e35092f655c2b33fc9bc7b1fd6895d9e1f56b98e3690d1198

Aliases

arxiv: 1403.4400 · arxiv_version: 1403.4400v4 · doi: 10.48550/arxiv.1403.4400 · pith_short_12: ENFZNFOZSM4Z · pith_short_16: ENFZNFOZSM4Z4NIJ · pith_short_8: ENFZNFOZ

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/ENFZNFOZSM4Z4NIJF5SVYKZT7S \
  | 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: 234b9695d993399e35092f655c2b33fc9bc7b1fd6895d9e1f56b98e3690d1198

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3495ab37d0d71e9b12cf4995c95943a29df897015daa7c7b499aa2316a91bf1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2014-03-18T10:43:04Z",
    "title_canon_sha256": "ff685c2cffec7bbfea25cd14a6f6d7a6a07605ef6b197f24b8ce1d16913cdf59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.4400",
    "kind": "arxiv",
    "version": 4
  }
}