Pith Number

pith:2BNASAXO

pith:2025:2BNASAXOMWYTH6TQJ2ARHRH3KU

not attested not anchored not stored refs pending

The Jackknife method as a new approach to validate strong lens mass models

Ayari Kitamura, Masamune Oguri, Shun Nishida, Yoshinobu Fudamoto

arxiv:2505.00553 v2 · 2025-05-01 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2BNASAXOMWYTH6TQJ2ARHRH3KU}

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	2026-07-05T11:33:23.374961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d05a0902ee65b133fa704e8113c4fb551a0bf295cc46603fb130ace1c3ff54ac

Aliases

arxiv: 2505.00553 · arxiv_version: 2505.00553v2 · doi: 10.48550/arxiv.2505.00553 · pith_short_12: 2BNASAXOMWYT · pith_short_16: 2BNASAXOMWYTH6TQ · pith_short_8: 2BNASAXO

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/2BNASAXOMWYTH6TQJ2ARHRH3KU \
  | 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: d05a0902ee65b133fa704e8113c4fb551a0bf295cc46603fb130ace1c3ff54ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f637aee9670211646975764ba59ad0f07763d9195a23c74357a4e7a5fc78c5c5",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2025-05-01T14:28:50Z",
    "title_canon_sha256": "4f9d0976dac0a22c81d1874f2a5abbf5c05a3a99904d67978e27ae8c2ea3376c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.00553",
    "kind": "arxiv",
    "version": 2
  }
}