Pith Number

pith:PDNP2HKV

pith:2011:PDNP2HKVQ2COU3XHFI75BY4HES

not attested not anchored not stored refs pending

Solar-System Constraints on f(R) Chameleon Gravity

Je-An Gu, Wei-Ting Lin

arxiv:1108.1782 v1 · 2011-08-08 · gr-qc · astro-ph.CO · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PDNP2HKVQ2COU3XHFI75BY4HES}

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	2026-05-18T04:16:00.165438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78dafd1d558684ea6ee72a3fd0e3872485046dc5dd9442b34217eaa6f5ac0b9c

Aliases

arxiv: 1108.1782 · arxiv_version: 1108.1782v1 · doi: 10.48550/arxiv.1108.1782 · pith_short_12: PDNP2HKVQ2CO · pith_short_16: PDNP2HKVQ2COU3XH · pith_short_8: PDNP2HKV

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/PDNP2HKVQ2COU3XHFI75BY4HES \
  | 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: 78dafd1d558684ea6ee72a3fd0e3872485046dc5dd9442b34217eaa6f5ac0b9c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51f7ce49a89f8d286610c53fbe40d5af2497bc4bb41b566b681b032dff9d07ab",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-08-08T19:05:50Z",
    "title_canon_sha256": "408d1ca9d8ab5509c4d2a6c3e068eb1179a34222bf0e5384005cdd471c7fe80f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.1782",
    "kind": "arxiv",
    "version": 1
  }
}