Pith Number

pith:ADDO3WL7

pith:2009:ADDO3WL7VDYWZEAAYRZVZNOZP3

not attested not anchored not stored refs pending

The cosmological constant and the coincidence problem in a new cosmological interpretation of the universal constant c

David Viennot, Jean-Marie Vigoureux

arxiv:0905.4576 v1 · 2009-05-28 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ADDO3WL7VDYWZEAAYRZVZNOZP3}

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	2026-05-18T04:26:32.031403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

00c6edd97fa8f16c9000c4735cb5d97ed39354b13d8bb9c41399dcf1f644f8de

Aliases

arxiv: 0905.4576 · arxiv_version: 0905.4576v1 · doi: 10.48550/arxiv.0905.4576 · pith_short_12: ADDO3WL7VDYW · pith_short_16: ADDO3WL7VDYWZEAA · pith_short_8: ADDO3WL7

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/ADDO3WL7VDYWZEAAYRZVZNOZP3 \
  | 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: 00c6edd97fa8f16c9000c4735cb5d97ed39354b13d8bb9c41399dcf1f644f8de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0bde74dc0928255750bd773bedf3cbf5e1da689ced397fdd3691d9137f15b131",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-05-28T09:22:26Z",
    "title_canon_sha256": "15f74d905e96336cecc6008a65ac53b1ae2687fac5dfce4b87ae1a7804c75c48"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.4576",
    "kind": "arxiv",
    "version": 1
  }
}