Pith Number

pith:2LN3PWLD

pith:2026:2LN3PWLDRVV7YPBKTV7FRHFK4P

not attested not anchored not stored refs pending

Finite time pseudo-rip singularity in cosmology

Mariusz P. D\k{a}browski, Teodor Borislavov Vasilev

arxiv:2602.03540 v2 · 2026-02-03 · 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{2LN3PWLDRVV7YPBKTV7FRHFK4P}

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	2026-05-20T00:03:04.465764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2dbb7d9638d6bfc3c2a9d7e589caae3ecedaa69a703d9ad3738afddd3a296fc

Aliases

arxiv: 2602.03540 · arxiv_version: 2602.03540v2 · doi: 10.48550/arxiv.2602.03540 · pith_short_12: 2LN3PWLDRVV7 · pith_short_16: 2LN3PWLDRVV7YPBK · pith_short_8: 2LN3PWLD

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/2LN3PWLDRVV7YPBKTV7FRHFK4P \
  | 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: d2dbb7d9638d6bfc3c2a9d7e589caae3ecedaa69a703d9ad3738afddd3a296fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ee3bf6c40fa6b7975bbd125e6470149ab07e19ef06ee7a3470f2ad85f46bb34",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-02-03T13:56:44Z",
    "title_canon_sha256": "60ec7e8f937ab4708a782d443ee8e21f4e1d0dcf814dc6a06cc94507bc0a1010"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.03540",
    "kind": "arxiv",
    "version": 2
  }
}