Pith Number

pith:OWI24FP5

pith:2014:OWI24FP5BPXX7KMTD7JQXU22HT

not attested not anchored not stored refs pending

The Hubble Expansion is Isotropic in the Epoch of Dark Energy

Jeremy Darling

arxiv:1404.3735 v1 · 2014-04-14 · astro-ph.CO · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OWI24FP5BPXX7KMTD7JQXU22HT}

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	2026-05-18T01:43:34.708117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7591ae15fd0bef7fa9931fd30bd35a3cd5ae91212c040664ae93231909092870

Aliases

arxiv: 1404.3735 · arxiv_version: 1404.3735v1 · doi: 10.48550/arxiv.1404.3735 · pith_short_12: OWI24FP5BPXX · pith_short_16: OWI24FP5BPXX7KMT · pith_short_8: OWI24FP5

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/OWI24FP5BPXX7KMTD7JQXU22HT \
  | 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: 7591ae15fd0bef7fa9931fd30bd35a3cd5ae91212c040664ae93231909092870

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35ea6cea350a8e8ad613529d8912ac12d8d724f86f7009c01e4d7fd8cfadd307",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2014-04-14T20:00:29Z",
    "title_canon_sha256": "67dd213e201b47f840673d603361ff6755cce650b57309ee0f155e9e87ff0689"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.3735",
    "kind": "arxiv",
    "version": 1
  }
}