Pith Number

pith:ETYYTY55

pith:2010:ETYYTY55S5USO5UPGT3YNW7RYK

not attested not anchored not stored refs pending

Shifted Riccati Procedure: Application to Conformal Barotropic FRW Cosmologies

Haret C. Rosu, Kira V. Khmelnytskaya

arxiv:1012.1920 v2 · 2010-12-09 · gr-qc · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ETYYTY55S5USO5UPGT3YNW7RYK}

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	2026-05-18T02:23:07.606361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24f189e3bd976927768f34f786dbf1c2a817d0efbdf348640319784397c681c9

Aliases

arxiv: 1012.1920 · arxiv_version: 1012.1920v2 · doi: 10.48550/arxiv.1012.1920 · pith_short_12: ETYYTY55S5US · pith_short_16: ETYYTY55S5USO5UP · pith_short_8: ETYYTY55

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/ETYYTY55S5USO5UPGT3YNW7RYK \
  | 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: 24f189e3bd976927768f34f786dbf1c2a817d0efbdf348640319784397c681c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "732d5260493bcbac3341ea3b171c4a300f00fa571d32ebc11afa91d7220082fd",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-12-09T04:28:09Z",
    "title_canon_sha256": "e94f1536707162a97b05a3704ae3adfbc55b0d15fa5777112ac3a8bd5e90023a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.1920",
    "kind": "arxiv",
    "version": 2
  }
}