Pith Number

pith:PP6ZMUX4

pith:2007:PP6ZMUX44COI2JM33RFJKB633D

not attested not anchored not stored refs pending

Resource Letter: Dark Energy and the Accelerating Universe

Eric V. Linder

arxiv:0705.4102 v1 · 2007-05-28 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PP6ZMUX44COI2JM33RFJKB633D}

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	2026-05-18T04:36:42.212040Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bfd9652fce09c8d259bdc4a9507dbd8f0ad285058863c416a0a9f4d3bf6cd67

Aliases

arxiv: 0705.4102 · arxiv_version: 0705.4102v1 · doi: 10.48550/arxiv.0705.4102 · pith_short_12: PP6ZMUX44COI · pith_short_16: PP6ZMUX44COI2JM3 · pith_short_8: PP6ZMUX4

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/PP6ZMUX44COI2JM33RFJKB633D \
  | 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: 7bfd9652fce09c8d259bdc4a9507dbd8f0ad285058863c416a0a9f4d3bf6cd67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99615e7fafee2756676d92642598f89cf3ccaf4c029987bdc69760e787d93331",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-05-28T20:05:06Z",
    "title_canon_sha256": "523cf7f13cc56030cb0a32af46f71656ee8f208ee26d333ced3abb61fa2aa915"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0705.4102",
    "kind": "arxiv",
    "version": 1
  }
}