Pith Number

pith:OFZ2WZXY

pith:2025:OFZ2WZXYZHQ7AR23K73PKHSJXB

not attested not anchored not stored refs pending

A cosmological model with logarithmic f(T) gravity and H(z) quadratic expansion

Adriel O. Aquino, J.E.G. Silva

arxiv:2510.21466 v2 · 2025-10-24 · 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{OFZ2WZXYZHQ7AR23K73PKHSJXB}

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	2026-08-18T02:15:39.907797Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7173ab66f8c9e1f0475b57f6f51e49b87c9a6a0bb5229e1e12ebd6b3d8afbaa6

Aliases

arxiv: 2510.21466 · arxiv_version: 2510.21466v2 · doi: 10.48550/arxiv.2510.21466 · pith_short_12: OFZ2WZXYZHQ7 · pith_short_16: OFZ2WZXYZHQ7AR23 · pith_short_8: OFZ2WZXY

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/OFZ2WZXYZHQ7AR23K73PKHSJXB \
  | 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: 7173ab66f8c9e1f0475b57f6f51e49b87c9a6a0bb5229e1e12ebd6b3d8afbaa6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b245ff28986b803ce2a75d460a2ed4e3d940785a2f71b21a726182c51218581",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2025-10-24T13:51:59Z",
    "title_canon_sha256": "570d770bac5a0c9b2ba3175daef96b21400f33cced4e26b912dccd443d929d52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2510.21466",
    "kind": "arxiv",
    "version": 2
  }
}