Pith Number

pith:O6LIS2HP

pith:1996:O6LIS2HP2AW2MYAGXPC5OADTYP

not attested not anchored not stored refs pending

Integration in the GHP formalism II: An operator approach for spacetimes with killing vectors, with applications to twisting type n spaces

Garry Ludwig (Department of Mathematical Sciences, Link\"oping University), S. Brian Edgar (Department of Mathematics, University of Alberta)

arxiv:gr-qc/9605006 v1 · 1996-05-02 · 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{O6LIS2HP2AW2MYAGXPC5OADTYP}

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	2026-05-18T01:39:19.400438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77968968efd02da66006bbc5d70073c3e0d3320086959d1c44cd152abf89fc2f

Aliases

arxiv: gr-qc/9605006 · arxiv_version: gr-qc/9605006v1 · doi: 10.48550/arxiv.gr-qc/9605006 · pith_short_12: O6LIS2HP2AW2 · pith_short_16: O6LIS2HP2AW2MYAG · pith_short_8: O6LIS2HP

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/O6LIS2HP2AW2MYAGXPC5OADTYP \
  | 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: 77968968efd02da66006bbc5d70073c3e0d3320086959d1c44cd152abf89fc2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3f41b1d9b9aa7104ed085c224c95eb14d357ae57661dc64a7a22c96604b5b5f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1996-05-02T11:39:39Z",
    "title_canon_sha256": "fc89a7a527cce4b33a5ebca431de3bbe378df78bc19db660511f0d6fc40cc931"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9605006",
    "kind": "arxiv",
    "version": 1
  }
}