Pith Number

pith:R43Z234T

pith:2015:R43Z234TJRM2MWTMZ75DP6XGNQ

not attested not anchored not stored refs pending

Born-Infeld gravity coupled to Born-Infeld electrodynamics

India), Sayan Kar (IIT Kharagpur, Soumya Jana

arxiv:1504.05842 v3 · 2015-04-22 · gr-qc · 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{R43Z234TJRM2MWTMZ75DP6XGNQ}

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	2026-05-18T01:31:11.117223Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f379d6f934c59a65a6ccffa37fae66c11b3e4849dd267e640f7424e301e6a43

Aliases

arxiv: 1504.05842 · arxiv_version: 1504.05842v3 · doi: 10.48550/arxiv.1504.05842 · pith_short_12: R43Z234TJRM2 · pith_short_16: R43Z234TJRM2MWTM · pith_short_8: R43Z234T

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/R43Z234TJRM2MWTMZ75DP6XGNQ \
  | 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: 8f379d6f934c59a65a6ccffa37fae66c11b3e4849dd267e640f7424e301e6a43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca2bc7be4193e38da8726ed27ab719acf1ddf3257741a09fb282b08b21c75735",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-04-22T15:01:25Z",
    "title_canon_sha256": "0e57382d75924313025410d2c9824fdadb5dec7da4ae1aaa112b8ae7a1ba048b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05842",
    "kind": "arxiv",
    "version": 3
  }
}