Pith Number

pith:EB5FFEVU

pith:2009:EB5FFEVUEPVHY2N2KYHMZPQMNF

not attested not anchored not stored refs pending

Thawing F(R) cosmology

Fatimah Shojai, Mahmood Roshan

arxiv:0908.1722 v1 · 2009-08-12 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EB5FFEVUEPVHY2N2KYHMZPQMNF}

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	2026-05-18T02:34:37.893465Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

207a5292b423ea7c69ba560eccbe0c697cb971e3dce17a9d376be9907eb8a0a4

Aliases

arxiv: 0908.1722 · arxiv_version: 0908.1722v1 · doi: 10.48550/arxiv.0908.1722 · pith_short_12: EB5FFEVUEPVH · pith_short_16: EB5FFEVUEPVHY2N2 · pith_short_8: EB5FFEVU

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/EB5FFEVUEPVHY2N2KYHMZPQMNF \
  | 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: 207a5292b423ea7c69ba560eccbe0c697cb971e3dce17a9d376be9907eb8a0a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fbf925c1dca4ad5649f7a2426348e90ffabcd71335f2cce2618a0b3813aa14f6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-08-12T14:53:04Z",
    "title_canon_sha256": "7941d01a149361dfe6d2328c0585c24eb507726142a0342bde09755e29d51d8f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.1722",
    "kind": "arxiv",
    "version": 1
  }
}