Pith Number

pith:YPH7Q3N5

pith:2017:YPH7Q3N5KIB5A2N6UG3EYXISJC

not attested not anchored not stored refs pending

The evolution of gravitons in accelerating cosmologies: the case of extended gravity

Mariafelicia De Laurentis, Salvatore Capozziello, Sergei D. Odintsov, Shin'ichi Nojiri

arxiv:1702.05517 v2 · 2017-02-17 · 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{YPH7Q3N5KIB5A2N6UG3EYXISJC}

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	2026-05-18T00:45:11.660653Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3cff86dbd5203d069bea1b64c5d1248b6086effe2047eca44505bbb9998cfab

Aliases

arxiv: 1702.05517 · arxiv_version: 1702.05517v2 · doi: 10.48550/arxiv.1702.05517 · pith_short_12: YPH7Q3N5KIB5 · pith_short_16: YPH7Q3N5KIB5A2N6 · pith_short_8: YPH7Q3N5

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/YPH7Q3N5KIB5A2N6UG3EYXISJC \
  | 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: c3cff86dbd5203d069bea1b64c5d1248b6086effe2047eca44505bbb9998cfab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2356c3983198ad1d565c9c93df8603e65f9ce12f04ebde07fb689e953f1e4072",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-02-17T21:07:45Z",
    "title_canon_sha256": "dd5f7354c664dcf1264f0cc2d1f32f619b679b157d30ba218fc9169a89e04821"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.05517",
    "kind": "arxiv",
    "version": 2
  }
}