Pith Number

pith:4VDXFDJD

pith:2025:4VDXFDJDGRUI3CKBWLTASK3URL

not attested not anchored not stored refs pending

Physical and Theoretical Challenges to Integrable Singularities

Hooman Neshat, Julio Arrechea, Stefano Liberati, Vania Vellucci

arxiv:2504.17863 v2 · 2025-04-24 · 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{4VDXFDJDGRUI3CKBWLTASK3URL}

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	2026-07-05T11:53:46.031270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e547728d2334688d8941b2e6092b748ae4e20d09d91f531258d88e0067ca7b53

Aliases

arxiv: 2504.17863 · arxiv_version: 2504.17863v2 · doi: 10.48550/arxiv.2504.17863 · pith_short_12: 4VDXFDJDGRUI · pith_short_16: 4VDXFDJDGRUI3CKB · pith_short_8: 4VDXFDJD

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/4VDXFDJDGRUI3CKBWLTASK3URL \
  | 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: e547728d2334688d8941b2e6092b748ae4e20d09d91f531258d88e0067ca7b53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42757cce9b4ca03528bcf0c15408205633f941e571f35a17424d4a63ee72f9d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2025-04-24T18:07:46Z",
    "title_canon_sha256": "e475ce23b9c609a08849f82337edaa2763af4f30e2f0248b58934e7ac013a21a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.17863",
    "kind": "arxiv",
    "version": 2
  }
}