Pith Number

pith:LENGQ6EX

pith:2010:LENGQ6EX6QVVAASISJQ32ZOSMN

not attested not anchored not stored refs pending

Nonlocal gravity and the diffusion equation

Gianluca Calcagni, Giuseppe Nardelli

arxiv:1004.5144 v2 · 2010-04-28 · hep-th · astro-ph.CO · 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{LENGQ6EX6QVVAASISJQ32ZOSMN}

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	2026-05-18T04:32:34.721306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

591a687897f42b5002489261bd65d26366091ad8512c22e22a1c151eb718556a

Aliases

arxiv: 1004.5144 · arxiv_version: 1004.5144v2 · doi: 10.48550/arxiv.1004.5144 · pith_short_12: LENGQ6EX6QVV · pith_short_16: LENGQ6EX6QVVAASI · pith_short_8: LENGQ6EX

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/LENGQ6EX6QVVAASISJQ32ZOSMN \
  | 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: 591a687897f42b5002489261bd65d26366091ad8512c22e22a1c151eb718556a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78a4890e5c950e9356a851a76eefc31a228f6afde43b263ca85b67830c316050",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2010-04-28T21:01:36Z",
    "title_canon_sha256": "9c57e273d4a2c74f8fe91a0db6ccbb56d6aa0048a1d88f16c9a1bc5ee5844e12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.5144",
    "kind": "arxiv",
    "version": 2
  }
}