Pith Number

pith:EJCVYIBL

pith:2015:EJCVYIBL7EZ5WRWOOQFN6ZR63L

not attested not anchored not stored refs pending

Validating variational principle for higher order theory of gravity

Abhik Kumar Sanyal, Kaushik Sarkar, Nayem Sk, Soumendranath Ruz

arxiv:1505.00740 v1 · 2015-05-01 · 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{EJCVYIBL7EZ5WRWOOQFN6ZR63L}

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	2026-05-18T01:35:10.128433Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22455c202bf933db46ce740adf663edae0e3737f7693602d523c2ffc7be6c6f5

Aliases

arxiv: 1505.00740 · arxiv_version: 1505.00740v1 · doi: 10.48550/arxiv.1505.00740 · pith_short_12: EJCVYIBL7EZ5 · pith_short_16: EJCVYIBL7EZ5WRWO · pith_short_8: EJCVYIBL

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/EJCVYIBL7EZ5WRWOOQFN6ZR63L \
  | 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: 22455c202bf933db46ce740adf663edae0e3737f7693602d523c2ffc7be6c6f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9cb16f0fdd22c8f085aa5f640206d9408c722eabbaffabdfd01a5808a1ebe608",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-05-01T10:17:21Z",
    "title_canon_sha256": "e54ceb93ab78e917f1a652ba5eb21f0c8c7359b1beb5ac6c4a541104085341a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.00740",
    "kind": "arxiv",
    "version": 1
  }
}