Pith Number

pith:7YJHFZVE

pith:2014:7YJHFZVEPQTO5Q3Q5H7QREXTZW

not attested not anchored not stored refs pending

A possible correspondence between Ricci identities and Dirac equations in the Newman-Penrose formalism: towards an understanding of gravity induced collapse of the wave-function?

Anushrut Sharma, Tejinder P. Singh

arxiv:1403.2231 v2 · 2014-03-10 · gr-qc · quant-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{7YJHFZVEPQTO5Q3Q5H7QREXTZW}

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	2026-05-18T01:44:09.564746Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe1272e6a47c26eec370e9ff0892f3cdade8cad341c6f2cb89b645c08186a2c7

Aliases

arxiv: 1403.2231 · arxiv_version: 1403.2231v2 · doi: 10.48550/arxiv.1403.2231 · pith_short_12: 7YJHFZVEPQTO · pith_short_16: 7YJHFZVEPQTO5Q3Q · pith_short_8: 7YJHFZVE

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/7YJHFZVEPQTO5Q3Q5H7QREXTZW \
  | 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: fe1272e6a47c26eec370e9ff0892f3cdade8cad341c6f2cb89b645c08186a2c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14dbdfdecc6ec614b6a8038c97488a2e9c997bdf7666e11dedcdc934fbc818a0",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-03-10T12:58:57Z",
    "title_canon_sha256": "371175df8041e88b256b51dbdcac959cce320d1a9c0d5f41119409997b799e63"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.2231",
    "kind": "arxiv",
    "version": 2
  }
}