Pith Number

pith:3HAWSUZ4

pith:2019:3HAWSUZ4HRE4NIAVF3TTUMPDEO

not attested not anchored not stored refs pending

The Effects of Spatial Curvature on Cosmic Evolution

Christine R. Farrugia, Joseph Sultana

arxiv:1907.07651 v1 · 2019-07-17 · 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{3HAWSUZ4HRE4NIAVF3TTUMPDEO}

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	2026-05-17T23:40:21.410462Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9c169533c3c49c6a0152ee73a31e32398c18a6eb29053be2268c8477880cd40

Aliases

arxiv: 1907.07651 · arxiv_version: 1907.07651v1 · doi: 10.48550/arxiv.1907.07651 · pith_short_12: 3HAWSUZ4HRE4 · pith_short_16: 3HAWSUZ4HRE4NIAV · pith_short_8: 3HAWSUZ4

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/3HAWSUZ4HRE4NIAVF3TTUMPDEO \
  | 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: d9c169533c3c49c6a0152ee73a31e32398c18a6eb29053be2268c8477880cd40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e027a530eedea1dc7dfb01f723a97681c610ea0406902e9d273296c637bc82a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-07-17T17:25:22Z",
    "title_canon_sha256": "1b51de202cff5ee7825a017e75f20a42c96086c99a513cb4dbdfdf52141967c5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.07651",
    "kind": "arxiv",
    "version": 1
  }
}