Pith Number

pith:C7M73YDQ

pith:2015:C7M73YDQYALLNAX5WQRVCDH7WM

not attested not anchored not stored refs pending

The cosmological constant and entropy problems: mysteries of the present with profound roots in the past

Joan Sola

arxiv:1505.05863 v2 · 2015-05-21 · gr-qc · astro-ph.CO · hep-ph · 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{C7M73YDQYALLNAX5WQRVCDH7WM}

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	2026-05-18T01:28:55.775358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17d9fde070c016b682fdb423510cffb32d4790fbffccf2ceb9b2aa055ead576d

Aliases

arxiv: 1505.05863 · arxiv_version: 1505.05863v2 · doi: 10.48550/arxiv.1505.05863 · pith_short_12: C7M73YDQYALL · pith_short_16: C7M73YDQYALLNAX5 · pith_short_8: C7M73YDQ

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/C7M73YDQYALLNAX5WQRVCDH7WM \
  | 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: 17d9fde070c016b682fdb423510cffb32d4790fbffccf2ceb9b2aa055ead576d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61f22f8900b92c8a5282c210c4cc47b0883be4594eda142198a9514d18d1ba2f",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-05-21T19:56:20Z",
    "title_canon_sha256": "27c7c33d78883f5520054b458e45a517ef01c87bcdcfe9d09d9121668e2d1213"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.05863",
    "kind": "arxiv",
    "version": 2
  }
}