Pith Number

pith:UZJRHCG4

pith:2025:UZJRHCG4BR3EJUHDJNLNDT2YNQ

not attested not anchored not stored refs pending

Is Phantom Barrier Crossing Inevitable? A Cosmographic Analysis

Nandan Roy, Soumya Chakrabarti

arxiv:2508.13740 v2 · 2025-08-19 · 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{UZJRHCG4BR3EJUHDJNLNDT2YNQ}

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.

Cited by

2 papers in Pith

No evidence for phantom crossing: local goodness-of-fit improvements do not persist under global Bayesian model comparison

Receipt and verification

First computed	2026-07-05T12:09:23.053078Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6531388dc0c7644d0e34b56d1cf586c3fbcb8e5e05641c76d4cd393c4d27d5b

Aliases

arxiv: 2508.13740 · arxiv_version: 2508.13740v2 · doi: 10.48550/arxiv.2508.13740 · pith_short_12: UZJRHCG4BR3E · pith_short_16: UZJRHCG4BR3EJUHD · pith_short_8: UZJRHCG4

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/UZJRHCG4BR3EJUHDJNLNDT2YNQ \
  | 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: a6531388dc0c7644d0e34b56d1cf586c3fbcb8e5e05641c76d4cd393c4d27d5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e86933ff76529b7ff5f8b297fc9b07dbecbe3fe48bf51c68e6a5afa1d57bfdf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2025-08-19T11:24:14Z",
    "title_canon_sha256": "4f9899ef4f8bb5d71d21303681f5ae4b4865583bfaad42bda974854d7cd7687b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.13740",
    "kind": "arxiv",
    "version": 2
  }
}