Pith Number

pith:2OAQJXVT

pith:2009:2OAQJXVT5OKGJNUI653H4HVHO4

not attested not anchored not stored refs pending

A Decade of Dark Energy: 1998 - 2008

Ruth A. Daly

arxiv:0901.2724 v1 · 2009-01-18 · 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{2OAQJXVT5OKGJNUI653H4HVHO4}

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	2026-05-18T02:14:56.915954Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d38104deb3eb9464b688f7767e1ea77709c44d9d31309e6354bc7d23406bcfe5

Aliases

arxiv: 0901.2724 · arxiv_version: 0901.2724v1 · doi: 10.48550/arxiv.0901.2724 · pith_short_12: 2OAQJXVT5OKG · pith_short_16: 2OAQJXVT5OKGJNUI · pith_short_8: 2OAQJXVT

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/2OAQJXVT5OKGJNUI653H4HVHO4 \
  | 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: d38104deb3eb9464b688f7767e1ea77709c44d9d31309e6354bc7d23406bcfe5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e611034d448bfd3f5d861b163242e2504b959cf4f76485913e37921331fab75",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-01-18T18:48:19Z",
    "title_canon_sha256": "3a6a5a297e11769cfd56cdae1d2a232009ca274d9ed8972878a4b0bc69473842"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.2724",
    "kind": "arxiv",
    "version": 1
  }
}