Pith Number

pith:55IC2QKU

pith:2014:55IC2QKULZDZEDGV2WWGWOBL3D

not attested not anchored not stored refs pending

Detection of substructure with adaptive optics integral field spectroscopy of the gravitational lens B1422+231

A. M. Nierenberg, C. D. Fassnacht, M. W. Auger, S. A. Wright, T. Treu

arxiv:1402.1496 v2 · 2014-02-06 · astro-ph.GA · 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{55IC2QKULZDZEDGV2WWGWOBL3D}

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	2026-05-18T01:44:46.750750Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef502d41545e47920cd5d5ac6b382bd8e999f8d96ab5ff585e06e4e7a93227be

Aliases

arxiv: 1402.1496 · arxiv_version: 1402.1496v2 · doi: 10.48550/arxiv.1402.1496 · pith_short_12: 55IC2QKULZDZ · pith_short_16: 55IC2QKULZDZEDGV · pith_short_8: 55IC2QKU

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/55IC2QKULZDZEDGV2WWGWOBL3D \
  | 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: ef502d41545e47920cd5d5ac6b382bd8e999f8d96ab5ff585e06e4e7a93227be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a0a5f9e8032f3a011256d5613bb9a6cd7f6dbfca84bbda0d4a0a31916fba0f0",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-02-06T21:00:18Z",
    "title_canon_sha256": "6384728b3a95923549dfc67615d9641055fe3506883e13e84ec6d957bebcbb68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.1496",
    "kind": "arxiv",
    "version": 2
  }
}