Pith Number

pith:SP66LWQR

pith:2005:SP66LWQR4HHLPFT3X6ZSQEG7WB

not attested not anchored not stored refs pending

Dark energy, chaotic fields, and fundamental constants

Christian Beck

arxiv:astro-ph/0502211 v1 · 2005-02-10 · astro-ph · hep-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{SP66LWQR4HHLPFT3X6ZSQEG7WB}

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	2026-05-18T01:40:34.444840Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93fde5da11e1ceb7967bbfb32810dfb077482fd6186f237fc8768c470822be6e

Aliases

arxiv: astro-ph/0502211 · arxiv_version: astro-ph/0502211v1 · doi: 10.48550/arxiv.astro-ph/0502211 · pith_short_12: SP66LWQR4HHL · pith_short_16: SP66LWQR4HHLPFT3 · pith_short_8: SP66LWQR

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/SP66LWQR4HHLPFT3X6ZSQEG7WB \
  | 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: 93fde5da11e1ceb7967bbfb32810dfb077482fd6186f237fc8768c470822be6e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2d5743e0bbee273fb4ae2f2aea35cf87508a1c2e05edb2a8d263d6c8e1b17b5",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-02-10T10:32:54Z",
    "title_canon_sha256": "2a778d70f0565f117357a14eb04906640149765df6726e9c1e7ab3e097ae0982"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0502211",
    "kind": "arxiv",
    "version": 1
  }
}