Pith Number

pith:KD4LMTBO

pith:2012:KD4LMTBO62XPJBRCL2RBTGEF3X

not attested not anchored not stored refs pending

Strong Gravitational Lens Modeling with Spatially Variant Point Spread Functions

Adam Rogers, Jason D. Fiege

arxiv:1201.2127 v1 · 2012-01-10 · astro-ph.CO · astro-ph.GA · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KD4LMTBO62XPJBRCL2RBTGEF3X}

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	2026-05-18T01:58:53.264441Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50f8b64c2ef6aef486225ea2199885ddd810cd6b4f12c42196cb2d75a36ba38c

Aliases

arxiv: 1201.2127 · arxiv_version: 1201.2127v1 · doi: 10.48550/arxiv.1201.2127 · pith_short_12: KD4LMTBO62XP · pith_short_16: KD4LMTBO62XPJBRC · pith_short_8: KD4LMTBO

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/KD4LMTBO62XPJBRCL2RBTGEF3X \
  | 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: 50f8b64c2ef6aef486225ea2199885ddd810cd6b4f12c42196cb2d75a36ba38c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfdf4fdd60b60a4964d9cd559594fe56c31c39606096dc71a8551ed448484f12",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-01-10T17:54:27Z",
    "title_canon_sha256": "e078237fbd3561ebc3a60ca3d4c8b05c8bd67fdbdbeabc0a15b353e5411ad335"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2127",
    "kind": "arxiv",
    "version": 1
  }
}