Pith Number

pith:2DZTAGYH

pith:2011:2DZTAGYH2WZN44ICFUALESE6SK

not attested not anchored not stored refs pending

The Hubble constant and dark energy

Jeremy Mould

arxiv:1107.2982 v1 · 2011-07-15 · 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{2DZTAGYH2WZN44ICFUALESE6SK}

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	2026-05-18T02:01:16.523951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0f3301b07d5b2de71022d00b2489e92b69ebf53f2bd422b95a721f5ae46701a

Aliases

arxiv: 1107.2982 · arxiv_version: 1107.2982v1 · doi: 10.48550/arxiv.1107.2982 · pith_short_12: 2DZTAGYH2WZN · pith_short_16: 2DZTAGYH2WZN44IC · pith_short_8: 2DZTAGYH

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/2DZTAGYH2WZN44ICFUALESE6SK \
  | 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: d0f3301b07d5b2de71022d00b2489e92b69ebf53f2bd422b95a721f5ae46701a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0dfa95696f014161bfdd9546ffbbcf855b512fe762f1a1d19df2b3468c292732",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-07-15T02:18:38Z",
    "title_canon_sha256": "995d3b2efd41863cca39077cb17dfd24666f40c6d331922c70384ebd1574ed30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.2982",
    "kind": "arxiv",
    "version": 1
  }
}