Pith Number

pith:7DAIONZN

pith:2015:7DAIONZNIZBQXLLGSOEPIM6KNM

not attested not anchored not stored refs pending

A bridge between unified cosmic history by $f(R)$-gravity and BIonic system

Alireza Sepehri, Mohammad Reza Setare, Salvatore Capozziello

arxiv:1502.05493 v1 · 2015-02-19 · gr-qc · astro-ph.CO · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7DAIONZNIZBQXLLGSOEPIM6KNM}

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	2026-05-18T01:16:18.919582Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8c087372d46430bad669388f433ca6b0a26b57a2c7240ec016ab1446f0d159d

Aliases

arxiv: 1502.05493 · arxiv_version: 1502.05493v1 · doi: 10.48550/arxiv.1502.05493 · pith_short_12: 7DAIONZNIZBQ · pith_short_16: 7DAIONZNIZBQXLLG · pith_short_8: 7DAIONZN

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/7DAIONZNIZBQXLLGSOEPIM6KNM \
  | 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: f8c087372d46430bad669388f433ca6b0a26b57a2c7240ec016ab1446f0d159d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc4c10e66cf97f2978ebbea135da1cbb0f22ec01f89f558660a0d2a335f48de8",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-02-19T08:38:23Z",
    "title_canon_sha256": "96576288a74f2c0442528ce2cb16e9db8b40e5c72df446af743a35e21f698126"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.05493",
    "kind": "arxiv",
    "version": 1
  }
}