Pith Number

pith:KBEZOYO4

pith:2006:KBEZOYO4H233RBQQFKCMCCJKRL

not attested not anchored not stored refs pending

Revisiting VLT/UVES constraints on a varying fine-structure constant

J. K. Webb (2), M. T. Murphy (1), U. Cambridge; (2) U. New South Wales), V. V. Flambaum (2) ((1) Institute of Astronomy

arxiv:astro-ph/0611080 v3 · 2006-11-02 · 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{KBEZOYO4H233RBQQFKCMCCJKRL}

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	2026-05-18T01:40:29.048369Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50499761dc3eb7b886102a84c1092a8acec68d795a53ae2aa3ed09e495730e38

Aliases

arxiv: astro-ph/0611080 · arxiv_version: astro-ph/0611080v3 · doi: 10.48550/arxiv.astro-ph/0611080 · pith_short_12: KBEZOYO4H233 · pith_short_16: KBEZOYO4H233RBQQ · pith_short_8: KBEZOYO4

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/KBEZOYO4H233RBQQFKCMCCJKRL \
  | 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: 50499761dc3eb7b886102a84c1092a8acec68d795a53ae2aa3ed09e495730e38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b017000ab76cdcaa8c490bdbda9bb3b178f90d68303cbd01fa2f026fedd787f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-11-02T21:02:40Z",
    "title_canon_sha256": "39a13aa9c35adff47227b20daeca6d584e970696eaff74bf656b135df594f902"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0611080",
    "kind": "arxiv",
    "version": 3
  }
}