Pith Number

pith:AEE3FZYX

pith:2016:AEE3FZYXNVV4UCKV6K7LFXDMB7

not attested not anchored not stored refs pending

Algebraic classification of Robinson-Trautman spacetimes

Jiri Podolsky, Robert Svarc

arxiv:1608.07118 v1 · 2016-08-25 · 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{AEE3FZYXNVV4UCKV6K7LFXDMB7}

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	2026-05-18T00:45:01.539525Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0109b2e7176d6bca0955f2beb2dc6c0fc583890779c161731f9b670b9d4806bc

Aliases

arxiv: 1608.07118 · arxiv_version: 1608.07118v1 · doi: 10.48550/arxiv.1608.07118 · pith_short_12: AEE3FZYXNVV4 · pith_short_16: AEE3FZYXNVV4UCKV · pith_short_8: AEE3FZYX

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/AEE3FZYXNVV4UCKV6K7LFXDMB7 \
  | 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: 0109b2e7176d6bca0955f2beb2dc6c0fc583890779c161731f9b670b9d4806bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7aabad8c78881228bcdc249115d840bbe3e7221eed78a3ebfe82899fca12d8d7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2016-08-25T12:48:07Z",
    "title_canon_sha256": "4b5847d2e61e8984608137f86c95b375336c9e380bff4568c043d9b47c57c38b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.07118",
    "kind": "arxiv",
    "version": 1
  }
}