Pith Number

pith:2R2FLAFW

pith:1998:2R2FLAFWDOIXTX6XTVO3226PTG

not attested not anchored not stored refs pending

Physical nature of the central singularity in spherical collapse

I. H. Dwivedi, P. S. Joshi, S. S. Deshingkar

arxiv:gr-qc/9805055 v2 · 1998-05-14 · 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{2R2FLAFWDOIXTX6XTVO3226PTG}

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	2026-05-18T01:08:07.660614Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4745580b61b9179dfd79d5dbd6bcf99899a71a2bf504d1b37971cc36b2969e9

Aliases

arxiv: gr-qc/9805055 · arxiv_version: gr-qc/9805055v2 · doi: 10.48550/arxiv.gr-qc/9805055 · pith_short_12: 2R2FLAFWDOIX · pith_short_16: 2R2FLAFWDOIXTX6X · pith_short_8: 2R2FLAFW

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/2R2FLAFWDOIXTX6XTVO3226PTG \
  | 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: d4745580b61b9179dfd79d5dbd6bcf99899a71a2bf504d1b37971cc36b2969e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66e7ffd97fc92a24db0be6d128fb6b228f219975e2886a8cb963a0adf2853516",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1998-05-14T12:00:21Z",
    "title_canon_sha256": "842f47f2febf87464440a2926e12f233d305d4a53a9058490f0fee68db508590"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9805055",
    "kind": "arxiv",
    "version": 2
  }
}