Pith Number

pith:O2NTBV4L

pith:2015:O2NTBV4L3MIOJDFWTAKFIT53AM

not attested not anchored not stored refs pending

Gravitational lens modelling in a citizen science context

Anupreeta More, Aprajita Verma, Christine Macmillan, Claude Cornen, Elisabeth Baeten, Jonas Odermatt, Jonathan Coles, Julianne K. Wilcox, Phil Marshall, Prasenjit Saha, Rafael K\"ung, Surhud More

arxiv:1502.00008 v1 · 2015-01-30 · astro-ph.IM · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O2NTBV4L3MIOJDFWTAKFIT53AM}

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	2026-05-18T02:28:13.029703Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

769b30d78bdb10e48cb69814544fbb0331e9ca484a5ff20e5e2f381d4def9cfa

Aliases

arxiv: 1502.00008 · arxiv_version: 1502.00008v1 · doi: 10.48550/arxiv.1502.00008 · pith_short_12: O2NTBV4L3MIO · pith_short_16: O2NTBV4L3MIOJDFW · pith_short_8: O2NTBV4L

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/O2NTBV4L3MIOJDFWTAKFIT53AM \
  | 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: 769b30d78bdb10e48cb69814544fbb0331e9ca484a5ff20e5e2f381d4def9cfa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1622503be40e222ac719e1c42faa1334564489b73a6e9172f30a7118b1a5d5a",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-01-30T21:00:12Z",
    "title_canon_sha256": "b39d67579a85551b17eff8f92622037341ba1a707533864fa91c2cf6d83e38f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.00008",
    "kind": "arxiv",
    "version": 1
  }
}