Pith Number

pith:MBD4GRXA

pith:2020:MBD4GRXAZBVUKM2DAV7PK7SO5B

not attested not anchored not stored refs pending

Dark energy in multi-fractional spacetimes

Antonio De Felice, Gianluca Calcagni

arxiv:2004.02896 v2 · 2020-04-06 · gr-qc · astro-ph.CO · 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{MBD4GRXAZBVUKM2DAV7PK7SO5B}

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.

Cited by

2 papers in Pith

Fractional-Dimension Gravity and the Milky Way Galaxy

Cosmology of fractional gravity

Receipt and verification

First computed	2026-07-05T01:54:28.070709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6047c346e0c86b453343057ef57e4ee87d83d5c6fb2886218c9265d1e5a90bab

Aliases

arxiv: 2004.02896 · arxiv_version: 2004.02896v2 · doi: 10.48550/arxiv.2004.02896 · pith_short_12: MBD4GRXAZBVU · pith_short_16: MBD4GRXAZBVUKM2D · pith_short_8: MBD4GRXA

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/MBD4GRXAZBVUKM2DAV7PK7SO5B \
  | 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: 6047c346e0c86b453343057ef57e4ee87d83d5c6fb2886218c9265d1e5a90bab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3029ef2a689da4fd0024889d1fa328c9d495cfe020b7b7c585d1fdf91d5b4749",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2020-04-06T18:00:04Z",
    "title_canon_sha256": "ea18830669b07af42168ec9b0d2ca1799013c896e561879ba195156a6e952f75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.02896",
    "kind": "arxiv",
    "version": 2
  }
}