Pith Number

pith:FWI7UNMF

pith:2010:FWI7UNMFN5DAF54RYYG4S2ODLK

not attested not anchored not stored refs pending

Killing spinor space-times and constant-eigenvalue Killing tensors

D. Beke, L. Wylleman, N. Van den Bergh

arxiv:1012.3834 v1 · 2010-12-17 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FWI7UNMFN5DAF54RYYG4S2ODLK}

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	2026-05-18T02:04:23.245097Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d91fa35856f4602f791c60dc969c35ab81d0038718a5c10fc19b138346e424f

Aliases

arxiv: 1012.3834 · arxiv_version: 1012.3834v1 · doi: 10.48550/arxiv.1012.3834 · pith_short_12: FWI7UNMFN5DA · pith_short_16: FWI7UNMFN5DAF54R · pith_short_8: FWI7UNMF

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/FWI7UNMFN5DAF54RYYG4S2ODLK \
  | 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: 2d91fa35856f4602f791c60dc969c35ab81d0038718a5c10fc19b138346e424f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7be3ff03ad043ebb21b4d09f761deb34698dcaaae6b19afe4298d0f32b26d94b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-12-17T09:37:33Z",
    "title_canon_sha256": "83189730f0a167e99c14427adf3a83a696110830e1adbb258aa3f1eeff3b5f68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.3834",
    "kind": "arxiv",
    "version": 1
  }
}