Pith Number

pith:ZH6K2ANX

pith:2015:ZH6K2ANXH6O67SNLUGYPJ4XWGC

not attested not anchored not stored refs pending

Space Warps: I. Crowd-sourcing the Discovery of Gravitational Lenses

Amit Kapadia, Anupreeta More, Aprajita Verma, Arfon M. Smith, Chris J. Lintott, Chris Snyder, Christine Macmillan, Christopher P. Davis, Claude Cornen, David Miller, Edward Paget, Edwin Simpson, Elisabeth Baeten, Julianne Wilcox, Matthias Tecza, Michael Baumer, Michael Parrish, Philip J. Marshall, Prasenjit Saha, Rafael K\"ung, Robert Simpson, Surhud More, Thomas E. Collett

arxiv:1504.06148 v3 · 2015-04-21 · astro-ph.IM · 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{ZH6K2ANXH6O67SNLUGYPJ4XWGC}

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	2026-05-18T01:26:42.989089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9fcad01b73f9defc9aba1b0f4f2f6309348a7dc15274876772766621630fc54

Aliases

arxiv: 1504.06148 · arxiv_version: 1504.06148v3 · doi: 10.48550/arxiv.1504.06148 · pith_short_12: ZH6K2ANXH6O6 · pith_short_16: ZH6K2ANXH6O67SNL · pith_short_8: ZH6K2ANX

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/ZH6K2ANXH6O67SNLUGYPJ4XWGC \
  | 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: c9fcad01b73f9defc9aba1b0f4f2f6309348a7dc15274876772766621630fc54

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a374e1f48f3bf3a2646d23c46e4cdb48ed4760fb278c53890b6ab34aa078fddc",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-04-21T20:00:57Z",
    "title_canon_sha256": "ec39c6da1fe728f71f0e8f4dfbf128077534bff41b7181475a5c86b33f1f5d42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.06148",
    "kind": "arxiv",
    "version": 3
  }
}