Pith Number

pith:WN3B3QJB

pith:2013:WN3B3QJBBP6JQC6ULY366EFNAI

not attested not anchored not stored refs pending

Distributional cosmological quantities solve the paradox of soft singularity crossing

Alexander Yu. Kamenshchik, L\'aszl\'o \'A. Gergely, Zolt\'an Keresztes

arxiv:1304.1415 v1 · 2013-04-04 · gr-qc · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WN3B3QJBBP6JQC6ULY366EFNAI}

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	2026-05-18T01:50:42.914352Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3761dc1210bfc980bd45e37ef10ad02214c561d1da06b1e13e212a7cac7f1e9

Aliases

arxiv: 1304.1415 · arxiv_version: 1304.1415v1 · doi: 10.48550/arxiv.1304.1415 · pith_short_12: WN3B3QJBBP6J · pith_short_16: WN3B3QJBBP6JQC6U · pith_short_8: WN3B3QJB

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/WN3B3QJBBP6JQC6ULY366EFNAI \
  | 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: b3761dc1210bfc980bd45e37ef10ad02214c561d1da06b1e13e212a7cac7f1e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b44cff82a7821137e7d6df7e17f2fdec1eb296d2fd86998b989481ca88915ad",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-04-04T16:19:25Z",
    "title_canon_sha256": "c4ed2a6fb2f32b46dd68e5ff9d79f8135257d60cb47dd47292e01d0f231c5870"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.1415",
    "kind": "arxiv",
    "version": 1
  }
}