Pith Number

pith:QSBA4ZL4

pith:2011:QSBA4ZL4D6DKEV5YZD3JRVWTTY

not attested not anchored not stored refs pending

Emergent universe in chameleon, f(R) and f(T) gravity theories

Kolkata), Science University, Shibpur), Surajit Chattopadhyay (Pailan College of Management, Technology, Ujjal Debnath (Bengal Engineering

arxiv:1105.1091 v1 · 2011-05-04 · 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{QSBA4ZL4D6DKEV5YZD3JRVWTTY}

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	2026-05-18T04:18:55.223118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84820e657c1f86a257b8c8f698d6d39e2d8317302d70229e16b6d4df9bfcc74a

Aliases

arxiv: 1105.1091 · arxiv_version: 1105.1091v1 · doi: 10.48550/arxiv.1105.1091 · pith_short_12: QSBA4ZL4D6DK · pith_short_16: QSBA4ZL4D6DKEV5Y · pith_short_8: QSBA4ZL4

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/QSBA4ZL4D6DKEV5YZD3JRVWTTY \
  | 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: 84820e657c1f86a257b8c8f698d6d39e2d8317302d70229e16b6d4df9bfcc74a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80542799fab7bdac2a04cefa3a4d6aeff7d1df5c6e6728bd2e7ff122256f1210",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-05-04T08:50:55Z",
    "title_canon_sha256": "237d0e712380bbe52527bde0672fc744963bf930679a09df5982e05f6c2c1b5d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.1091",
    "kind": "arxiv",
    "version": 1
  }
}