Pith Number

pith:K32YQHKT

pith:2012:K32YQHKTTI4TO4ZFLMUAGVEPHR

not attested not anchored not stored refs pending

Almost isometries of non-reversible metrics with applications to stationary spacetimes

Leandro Lichtenfelz, Miguel Angel Javaloyes, Paolo Piccione

arxiv:1205.4539 v2 · 2012-05-21 · math.DG · 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{K32YQHKTTI4TO4ZFLMUAGVEPHR}

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	2026-05-18T03:32:28.496409Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56f5881d539a393773255b2803548f3c5396c18d96f3d0639476028c4350a1ac

Aliases

arxiv: 1205.4539 · arxiv_version: 1205.4539v2 · doi: 10.48550/arxiv.1205.4539 · pith_short_12: K32YQHKTTI4T · pith_short_16: K32YQHKTTI4TO4ZF · pith_short_8: K32YQHKT

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/K32YQHKTTI4TO4ZFLMUAGVEPHR \
  | 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: 56f5881d539a393773255b2803548f3c5396c18d96f3d0639476028c4350a1ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "59955276f8d1face035f226b64eb82d90868557fec6e27b289baf6e6a8b48e2e",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2012-05-21T09:34:43Z",
    "title_canon_sha256": "4137d7d8a45838f16cd44165cbd527efbe89bdb0d326be047aee21ff869b70ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.4539",
    "kind": "arxiv",
    "version": 2
  }
}