Pith Number

pith:4WIHZ4A2

pith:2008:4WIHZ4A2NQH32TNFM6L4EU6W2M

not attested not anchored not stored refs pending

The Sloan Lens ACS Survey. VI: Discovery and analysis of a double Einstein ring

Adam S. Bolton (IfA, CfA), Leonidas A. Moustakas (JPL), Leon V.E. Koopmans (Kapteyn Astronomical Institute), Philip J. Marshall (UCSB), Raphael Gavazzi (UCSB), Scott Burles (MIT), Tommaso Treu (UCSB)

arxiv:0801.1555 v1 · 2008-01-10 · 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{4WIHZ4A2NQH32TNFM6L4EU6W2M}

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

3 papers in Pith

Strong Lensing Tomography: Double and pseudo multi-source plane strong gravitational lensing to constrain dark energy

GIGA-Lens 2.0: Strong-Lens Modeling on Multiple GPU Nodes

Gaussian processes on ray-guided transformed uniform grids for fast, flexible, and auto-differentiable adaptive source reconstruction in lens modelling

Receipt and verification

First computed	2026-07-04T17:08:24.115670Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5907cf01a6c0fbd4da56797c253d6d3148703010c3608d294c66a4f5ad7bbb2

Aliases

arxiv: 0801.1555 · arxiv_version: 0801.1555v1 · doi: 10.48550/arxiv.0801.1555 · pith_short_12: 4WIHZ4A2NQH3 · pith_short_16: 4WIHZ4A2NQH32TNF · pith_short_8: 4WIHZ4A2

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/4WIHZ4A2NQH32TNFM6L4EU6W2M \
  | 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: e5907cf01a6c0fbd4da56797c253d6d3148703010c3608d294c66a4f5ad7bbb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "267b8c76413bc536a07b01428c198030660aa937c1b1f0a295dea7a2c63dfbef",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-01-10T08:06:16Z",
    "title_canon_sha256": "0fc03da4cd7917674c8c50d2aa4071e45c2b820d1107fd5d22b58c4d6271149c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.1555",
    "kind": "arxiv",
    "version": 1
  }
}