Pith Number

pith:3YTQWT5I

pith:2014:3YTQWT5I7NPSXM53FZALGYVK6W

not attested not anchored not stored refs pending

Loop quantum cosmology of a radiation-dominated flat FLRW universe

Edward Wilson-Ewing, Roberto Pierini, Tomasz Pawlowski

arxiv:1404.4036 v2 · 2014-04-15 · 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{3YTQWT5I7NPSXM53FZALGYVK6W}

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	2026-05-18T02:30:01.142567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de270b4fa8fb5f2bb3bb2e40b362aaf59ff5b2dc08cfd785a927b1ef1436d4b8

Aliases

arxiv: 1404.4036 · arxiv_version: 1404.4036v2 · doi: 10.48550/arxiv.1404.4036 · pith_short_12: 3YTQWT5I7NPS · pith_short_16: 3YTQWT5I7NPSXM53 · pith_short_8: 3YTQWT5I

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/3YTQWT5I7NPSXM53FZALGYVK6W \
  | 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: de270b4fa8fb5f2bb3bb2e40b362aaf59ff5b2dc08cfd785a927b1ef1436d4b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b39355b5ca80ed618355bc373c40562b37061a144e4f1996b68fac0dd375f2cd",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-04-15T19:40:20Z",
    "title_canon_sha256": "1e06411f18374403238846b46e106a3319425d62bb3d272fb499179e5f996a3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.4036",
    "kind": "arxiv",
    "version": 2
  }
}