Pith Number

pith:ABLOBV4P

pith:2026:ABLOBV4PA6HWLLQ6HV6UNLWUYQ

not attested not anchored not stored refs pending

Non-vacuum metrics for the Newman-Unti-Tamburino background: A coordinate-free approach to diverging and twisting solutions

Ay\c{s}e H\"umeyra Bilge, Gulay Karakaya, Tekin Dereli, Tolga Birkandan

arxiv:2602.20563 v2 · 2026-02-24 · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ABLOBV4PA6HWLLQ6HV6UNLWUYQ}

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	2026-05-26T01:03:26.019703Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0056e0d78f078f65ae1e3d7d46aed4c4220043305fef82bcb594a80f7e3e0215

Aliases

arxiv: 2602.20563 · arxiv_version: 2602.20563v2 · doi: 10.48550/arxiv.2602.20563 · pith_short_12: ABLOBV4PA6HW · pith_short_16: ABLOBV4PA6HWLLQ6 · pith_short_8: ABLOBV4P

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/ABLOBV4PA6HWLLQ6HV6UNLWUYQ \
  | 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: 0056e0d78f078f65ae1e3d7d46aed4c4220043305fef82bcb594a80f7e3e0215

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e56d2b6a22536c8b38322e6fbb13433704a33164e0e53c72e832d1b5d5d9037f",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-02-24T05:25:49Z",
    "title_canon_sha256": "b469f47bc650b04014cc668bc5cc903ae981a79df6c4e3cfb70c4bc1fe2190b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.20563",
    "kind": "arxiv",
    "version": 2
  }
}