Pith Number

pith:7B5MZ4CF

pith:2021:7B5MZ4CFL27GV5S5OOTFSFX6EJ

not attested not anchored not stored refs pending

deeplenstronomy: A dataset simulation package for strong gravitational lensing

Brian Nord, Jason Poh, Joshua Yao-Yu Lin, Robert Morgan, Simon Birrer

arxiv:2102.02830 v1 · 2021-02-04 · astro-ph.IM · astro-ph.CO · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7B5MZ4CFL27GV5S5OOTFSFX6EJ}

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	2026-07-05T02:12:54.387488Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f87accf0455ebe6af65d73a65916fe22578cb5bc0c157750c51e9a9ecb870485

Aliases

arxiv: 2102.02830 · arxiv_version: 2102.02830v1 · doi: 10.48550/arxiv.2102.02830 · pith_short_12: 7B5MZ4CFL27G · pith_short_16: 7B5MZ4CFL27GV5S5 · pith_short_8: 7B5MZ4CF

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/7B5MZ4CFL27GV5S5OOTFSFX6EJ \
  | 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: f87accf0455ebe6af65d73a65916fe22578cb5bc0c157750c51e9a9ecb870485

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5468e7f8a908be88f20ca0f610ccc1649df5608895e13df990d39bb8c3658cb",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-02-04T19:00:03Z",
    "title_canon_sha256": "ffd4e3b54180573acb4e951ad50e1db9c67ccbb35a2fde9e2458d04c2d74d8ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.02830",
    "kind": "arxiv",
    "version": 1
  }
}