Pith Number

pith:ORPYDIBF

pith:1995:ORPYDIBFBZGCELYX5F5X3CPTIJ

not attested not anchored not stored refs pending

New "Einstein Cross" Gravitational Lens Candidates in HST WFPC2 Survey Images

Baltimore, Eric J. Ostrander, Johns Hopkins University, Kavan U. Ratnatunga, MD), Myungshin Im (HST Medium Deep Survey, Richard E. Griffiths

arxiv:astro-ph/9508131 v1 · 1995-08-28 · 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{ORPYDIBFBZGCELYX5F5X3CPTIJ}

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

1 paper in Pith

Confirming HSC strong lens candidates with DESI Spectroscopy. I. Project overview and first results

Receipt and verification

First computed	2026-07-04T15:58:05.900180Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

745f81a0250e4c222f17e97b7d89f3425796fc2dc92f0d506010f485e4b8ed8a

Aliases

arxiv: astro-ph/9508131 · arxiv_version: astro-ph/9508131v1 · doi: 10.48550/arxiv.astro-ph/9508131 · pith_short_12: ORPYDIBFBZGC · pith_short_16: ORPYDIBFBZGCELYX · pith_short_8: ORPYDIBF

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/ORPYDIBFBZGCELYX5F5X3CPTIJ \
  | 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: 745f81a0250e4c222f17e97b7d89f3425796fc2dc92f0d506010f485e4b8ed8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "047e2630b608c2543fa1bb497215c213f89ec4d1c53b6b51d9fbb7775bd5eac3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-08-28T17:55:54Z",
    "title_canon_sha256": "e91aa36d0dbedfc7c5113a08f038351da515d48f50411defe008090920121753"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9508131",
    "kind": "arxiv",
    "version": 1
  }
}