Pith Number

pith:NIN32NKI

pith:2018:NIN32NKI6F5JURYJQCGEZGC7GJ

not attested not anchored not stored refs pending

A Study of the Point Spread Function in SDSS Images

Bo Xin, Charles F. Claver, George Angeli, John R. Peterson, Peter Yoachim, R. Lynne Jones, Robert H. Lupton, \v{Z}eljko Ivezi\'c

arxiv:1805.02845 v1 · 2018-05-08 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NIN32NKI6F5JURYJQCGEZGC7GJ}

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	2026-05-18T00:02:01.144585Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a1bbd3548f17a9a4709808c4c985f326a256d6e0b1b9b30ba761ae881aff1c4

Aliases

arxiv: 1805.02845 · arxiv_version: 1805.02845v1 · doi: 10.48550/arxiv.1805.02845 · pith_short_12: NIN32NKI6F5J · pith_short_16: NIN32NKI6F5JURYJ · pith_short_8: NIN32NKI

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/NIN32NKI6F5JURYJQCGEZGC7GJ \
  | 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: 6a1bbd3548f17a9a4709808c4c985f326a256d6e0b1b9b30ba761ae881aff1c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "95043e8a7cb630adc76af02bb14d632b0f2af8618a20501bfcbe148a88b35264",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-05-08T05:52:02Z",
    "title_canon_sha256": "58cd3fa2793f24e8e41a082c267cb7b79325cb9c419baf6f2fdce47642909c2e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.02845",
    "kind": "arxiv",
    "version": 1
  }
}