Pith Number

pith:IUAW4JWO

pith:2012:IUAW4JWO7UFLBJTGZMDZIK3CQE

not attested not anchored not stored refs pending

Apparent versus true value of the cosmological constant

Antonio Enea Romano, Pisin Chen

arxiv:1208.3911 v2 · 2012-08-20 · gr-qc · 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{IUAW4JWO7UFLBJTGZMDZIK3CQE}

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	2026-05-18T03:41:29.061170Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

45016e26cefd0ab0a666cb07942b62811d00034f2025762cb26efb55ae259c18

Aliases

arxiv: 1208.3911 · arxiv_version: 1208.3911v2 · doi: 10.48550/arxiv.1208.3911 · pith_short_12: IUAW4JWO7UFL · pith_short_16: IUAW4JWO7UFLBJTG · pith_short_8: IUAW4JWO

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/IUAW4JWO7UFLBJTGZMDZIK3CQE \
  | 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: 45016e26cefd0ab0a666cb07942b62811d00034f2025762cb26efb55ae259c18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da95de25d6908c4f63231427ff087e79fc822acf5bc0e1edadb0ae18cf21417a",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-08-20T02:58:12Z",
    "title_canon_sha256": "1f3781426b74d6be1082010556bee87aa999ab17b075457066e2c262b8ef56bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.3911",
    "kind": "arxiv",
    "version": 2
  }
}