Pith Number

pith:77BTWPPU

pith:2009:77BTWPPUPQXZ7XK7YKGQIDTEGK

not attested not anchored not stored refs pending

Mimicking the cosmological constant for more than one observable with large scale inhomogeneities

Antonio Enea Romano

arxiv:0912.4108 v5 · 2009-12-21 · astro-ph.CO · gr-qc · 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{77BTWPPUPQXZ7XK7YKGQIDTEGK}

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	2026-05-18T04:31:22.597248Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ffc33b3df47c2f9fdd5fc28d040e64329af83c166be5ff9f9c153fe092f2b276

Aliases

arxiv: 0912.4108 · arxiv_version: 0912.4108v5 · doi: 10.48550/arxiv.0912.4108 · pith_short_12: 77BTWPPUPQXZ · pith_short_16: 77BTWPPUPQXZ7XK7 · pith_short_8: 77BTWPPU

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/77BTWPPUPQXZ7XK7YKGQIDTEGK \
  | 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: ffc33b3df47c2f9fdd5fc28d040e64329af83c166be5ff9f9c153fe092f2b276

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3624e1611f977e22e3cfb20d1592c93e1c65137c21f345dccd543281f5e47036",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-12-21T09:05:26Z",
    "title_canon_sha256": "1853a703c007b08431bf6b668f39b92ecdeee62dba7ce7764181f9a7e291dbf0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.4108",
    "kind": "arxiv",
    "version": 5
  }
}