Pith Number

pith:7W55ZBHM

pith:2014:7W55ZBHMRZSMUGFDDN6JW3QNS7

not attested not anchored not stored refs pending

Adaptive optics observations of the gravitationally lensed quasar SDSS J1405+0959

Anupreeta More, Cristian E. Rusu, Masamune Oguri, Masanori Iye, Naohisa Inada, Shin Oya, Yosuke Minowa

arxiv:1408.1425 v1 · 2014-08-06 · 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{7W55ZBHMRZSMUGFDDN6JW3QNS7}

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	2026-05-18T01:42:23.041512Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdbbdc84ec8e64ca18a31b7c9b6e0d97cd63900cbe2f604634e6b39e947b0b83

Aliases

arxiv: 1408.1425 · arxiv_version: 1408.1425v1 · doi: 10.48550/arxiv.1408.1425 · pith_short_12: 7W55ZBHMRZSM · pith_short_16: 7W55ZBHMRZSMUGFD · pith_short_8: 7W55ZBHM

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/7W55ZBHMRZSMUGFDDN6JW3QNS7 \
  | 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: fdbbdc84ec8e64ca18a31b7c9b6e0d97cd63900cbe2f604634e6b39e947b0b83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8d5598f0c94b558e9238d3423f0747dfc38db0c64ebb412d99a887377f47719",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-08-06T21:14:52Z",
    "title_canon_sha256": "d06bac891b86eac4d3e2d82d519da15739c28e037fa28f0486e3d27e08bc0a9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.1425",
    "kind": "arxiv",
    "version": 1
  }
}