Pith Number

pith:XWEF45A7

pith:2017:XWEF45A7BWBEBEJJH6HATBYJN3

not attested not anchored not stored refs pending

On the $C^k$-embedding of Lorentzian manifolds in Ricci-flat spaces

Carlos Romero, F\'abio Dahia, Rodrigo Avalos

arxiv:1708.05911 v2 · 2017-08-19 · gr-qc · 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{XWEF45A7BWBEBEJJH6HATBYJN3}

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	2026-05-18T00:15:37.441031Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd885e741f0d824091293f8e0987096ee3154a9d1bb3399005d4db4448a26c49

Aliases

arxiv: 1708.05911 · arxiv_version: 1708.05911v2 · doi: 10.48550/arxiv.1708.05911 · pith_short_12: XWEF45A7BWBE · pith_short_16: XWEF45A7BWBEBEJJ · pith_short_8: XWEF45A7

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/XWEF45A7BWBEBEJJH6HATBYJN3 \
  | 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: bd885e741f0d824091293f8e0987096ee3154a9d1bb3399005d4db4448a26c49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c88672d0df6cbd739882418b18ae86aafeff50af26a87efd7d2a2989346045b",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-08-19T23:22:56Z",
    "title_canon_sha256": "08768da7dbc21d2fd9ebc85fe3a94183c4b2592df3d1d76f0ce753e2335fb83e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.05911",
    "kind": "arxiv",
    "version": 2
  }
}