Pith Number

pith:MJ2OC2XQ

pith:2005:MJ2OC2XQJGDIEB4ZVPM2JZVN4X

not attested not anchored not stored refs pending

Most precise single redshift bound to Delta alpha/alpha

D. Reimers, M. Centurion, M. Pollmann, P. Molaro, R. Quast, S. A. Levshakov, S. D'Odorico

arxiv:astro-ph/0511765 v1 · 2005-11-28 · 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{MJ2OC2XQJGDIEB4ZVPM2JZVN4X}

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	2026-07-04T16:53:06.214401Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6274e16af04986820799abd9a4e6ade5cb7edc4b7ec2a60e7233422353e6ac10

Aliases

arxiv: astro-ph/0511765 · arxiv_version: astro-ph/0511765v1 · doi: 10.48550/arxiv.astro-ph/0511765 · pith_short_12: MJ2OC2XQJGDI · pith_short_16: MJ2OC2XQJGDIEB4Z · pith_short_8: MJ2OC2XQ

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/MJ2OC2XQJGDIEB4ZVPM2JZVN4X \
  | 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: 6274e16af04986820799abd9a4e6ade5cb7edc4b7ec2a60e7233422353e6ac10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b86df9b30e2955c6966354e17b0412539ff089627e53c6514dfc3a0a753eb68",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-11-28T16:23:39Z",
    "title_canon_sha256": "8a78ae81b0483bfbe5f69d9b59b0c455e1b486504713abd37e5fdd1088738b8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0511765",
    "kind": "arxiv",
    "version": 1
  }
}