Pith Number

pith:YWP7FY3E

pith:2016:YWP7FY3EMCQKIBWMDR2EECALWH

not attested not anchored not stored refs pending

Qualitative evolution in f(R) cosmologies

A. A. Saharian, E. V. Chubaryan, G. H. Harutyunyan, R. M. Avagyan

arxiv:1602.00685 v1 · 2016-02-01 · 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{YWP7FY3EMCQKIBWMDR2EECALWH}

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	2026-05-18T01:21:24.960503Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c59ff2e36460a0a406cc1c7442080bb1f6a09beb115eb9d48781a81d302e2e18

Aliases

arxiv: 1602.00685 · arxiv_version: 1602.00685v1 · doi: 10.48550/arxiv.1602.00685 · pith_short_12: YWP7FY3EMCQK · pith_short_16: YWP7FY3EMCQKIBWM · pith_short_8: YWP7FY3E

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/YWP7FY3EMCQKIBWMDR2EECALWH \
  | 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: c59ff2e36460a0a406cc1c7442080bb1f6a09beb115eb9d48781a81d302e2e18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fa0d900181a66254805958d808349e3e81899422c38883fd8b5da99baabbabd",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2016-02-01T12:51:47Z",
    "title_canon_sha256": "2da5540d5ac394ef445fb2d8074a5a5672164db15a4367fef2fd9a5b241ece51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.00685",
    "kind": "arxiv",
    "version": 1
  }
}