Pith Number

pith:XYS3ARYC

pith:2017:XYS3ARYCWXN7PYBYX662SAU6VX

not attested not anchored not stored refs pending

A Computer Vision Approach To Identify Einstein Rings And Arcs

Chien-Hsiu Lee (Subaru Telescope, NAOJ)

arxiv:1702.07557 v1 · 2017-02-24 · 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{XYS3ARYCWXN7PYBYX662SAU6VX}

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	2026-05-18T00:47:03.164013Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be25b04702b5dbf7e038bfbda9029eadeba77d6460591be60d60268f3e356187

Aliases

arxiv: 1702.07557 · arxiv_version: 1702.07557v1 · doi: 10.48550/arxiv.1702.07557 · pith_short_12: XYS3ARYCWXN7 · pith_short_16: XYS3ARYCWXN7PYBY · pith_short_8: XYS3ARYC

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/XYS3ARYCWXN7PYBYX662SAU6VX \
  | 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: be25b04702b5dbf7e038bfbda9029eadeba77d6460591be60d60268f3e356187

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ff8448a2996934ca8ee31ce75bd68ec1a99629d77bf13cf74b2bd573f1ccaa1",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-02-24T12:38:11Z",
    "title_canon_sha256": "31c6d63dde9649f3ae50501fddaa3dad3c1ca2d9c8fc1983278aca4c9c5f45db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.07557",
    "kind": "arxiv",
    "version": 1
  }
}