Pith Number

pith:JWPQ55G7

pith:2005:JWPQ55G7UC7EHSOZOPOSGJX3M5

not attested not anchored not stored refs pending

Dark Energy Models in the w - w' Plane

Robert J. Scherrer

arxiv:astro-ph/0509890 v2 · 2005-09-29 · astro-ph · gr-qc · 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{JWPQ55G7UC7EHSOZOPOSGJX3M5}

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	2026-07-04T17:15:15.064678Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d9f0ef4dfa0be43c9d973dd2326fb675589fd7860c4ba53a322ae3ff863df54

Aliases

arxiv: astro-ph/0509890 · arxiv_version: astro-ph/0509890v2 · doi: 10.48550/arxiv.astro-ph/0509890 · pith_short_12: JWPQ55G7UC7E · pith_short_16: JWPQ55G7UC7EHSOZ · pith_short_8: JWPQ55G7

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/JWPQ55G7UC7EHSOZOPOSGJX3M5 \
  | 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: 4d9f0ef4dfa0be43c9d973dd2326fb675589fd7860c4ba53a322ae3ff863df54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "537759abe0567cd6eb7a4a010a5eb8bb953949470eeb096d0f600872eb0f681c",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-09-29T20:28:23Z",
    "title_canon_sha256": "ea0e942720d23d7e725d980cbd5fdf5cd048e764efe8409e1f4e3a6fb1a0f6a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0509890",
    "kind": "arxiv",
    "version": 2
  }
}