Pith Number

pith:AGJLSOIB

pith:2001:AGJLSOIBW53KWN5I3EHI2DIHUC

not attested not anchored not stored refs pending

The new two-image gravitational lens system CLASS B2319+051

A.C.S. Readhead, A.G. de Bruyn, C.D. Fassnacht, D.R. Marlow, D. Rusin, I.W.A. Browne, L.V.E. Koopmans, M. Norbury, N. Jackson, P.N. Wilkinson, R.D. Blandford, S.T. Myers, T.J. Pearson

arxiv:astro-ph/0104399 v2 · 2001-04-24 · 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{AGJLSOIBW53KWN5I3EHI2DIHUC}

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.

Cited by

1 paper in Pith

Taking Inventory of the Most Promising Lensed Radio Sources for Constraining Fundamental Properties of Dark Matter

Receipt and verification

First computed	2026-07-04T16:23:17.200841Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0192b93901b776ab37a8d90e8d0d07a0a74b6a3cc2e4846aaec21f5c0fe0c631

Aliases

arxiv: astro-ph/0104399 · arxiv_version: astro-ph/0104399v2 · doi: 10.48550/arxiv.astro-ph/0104399 · pith_short_12: AGJLSOIBW53K · pith_short_16: AGJLSOIBW53KWN5I · pith_short_8: AGJLSOIB

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/AGJLSOIBW53KWN5I3EHI2DIHUC \
  | 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: 0192b93901b776ab37a8d90e8d0d07a0a74b6a3cc2e4846aaec21f5c0fe0c631

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0357e7ab3107d84d4c867468a31f32bcffc82a62979866dbe0881644697aee75",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-04-24T23:11:05Z",
    "title_canon_sha256": "513ee675951560c7e33ab8aac4d01eb30d255af8db91a6fe537f78375c70bbd2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0104399",
    "kind": "arxiv",
    "version": 2
  }
}