Pith Number

pith:EM2FCRXQ

pith:2002:EM2FCRXQTU2U3MVDYT7Y3HQJFW

not attested not anchored not stored refs pending

The 2dF QSO Redshift Survey - X. Lensing of Background QSOs by Galaxy Groups

(2) Anglo-Australian Observatory, (3) Oxford University, (4) Liverpool JMU), A. D. Myers (1), B. J. Boyle (2), L. Miller (3), N. S. Loaring (3), P. J. Outram (1), R. J. Smith (4) ((1) Durham University, S. M. Croom (2), T. Shanks (1)

arxiv:astro-ph/0211624 v2 · 2002-11-28 · 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{EM2FCRXQTU2U3MVDYT7Y3HQJFW}

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	2026-05-18T04:27:04.986720Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23345146f09d354db2a3c4ff8d9e092daf8e7d96355c03eb3a85383932e464a4

Aliases

arxiv: astro-ph/0211624 · arxiv_version: astro-ph/0211624v2 · doi: 10.48550/arxiv.astro-ph/0211624 · pith_short_12: EM2FCRXQTU2U · pith_short_16: EM2FCRXQTU2U3MVD · pith_short_8: EM2FCRXQ

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/EM2FCRXQTU2U3MVDYT7Y3HQJFW \
  | 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: 23345146f09d354db2a3c4ff8d9e092daf8e7d96355c03eb3a85383932e464a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4b0ea1a5375beafa5e954c1fcce2eb2cc6eef1255ecc882c070286a458d38fd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-11-28T10:01:33Z",
    "title_canon_sha256": "7cbc8b619dcfbec81b39b348e081d48d3f86aae36948e3a6eae20813eec676a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0211624",
    "kind": "arxiv",
    "version": 2
  }
}