Pith Number

pith:HUHCB4WX

pith:2010:HUHCB4WXQAXZY2WCRNMFSFHS2Z

not attested not anchored not stored refs pending

Coupling the inflaton to an expanding aether

Ted Jacobson, William Donnelly

arxiv:1007.2594 v2 · 2010-07-15 · 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{HUHCB4WXQAXZY2WCRNMFSFHS2Z}

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	2026-05-18T04:04:42.612010Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d0e20f2d7802f9c6ac28b585914f2d671043fce08fd5bf5f0b99685fd8ba244

Aliases

arxiv: 1007.2594 · arxiv_version: 1007.2594v2 · doi: 10.48550/arxiv.1007.2594 · pith_short_12: HUHCB4WXQAXZ · pith_short_16: HUHCB4WXQAXZY2WC · pith_short_8: HUHCB4WX

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/HUHCB4WXQAXZY2WCRNMFSFHS2Z \
  | 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: 3d0e20f2d7802f9c6ac28b585914f2d671043fce08fd5bf5f0b99685fd8ba244

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d71ab29290f198677e8b162512445fe89e8ef903dcdc0091870d4d2e331526e",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-07-15T15:45:21Z",
    "title_canon_sha256": "c4e31cfe4b887b845e0a31f3dc674862c6d917b2e8a593346ee4eadad50cafb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.2594",
    "kind": "arxiv",
    "version": 2
  }
}