Pith Number

pith:JBUVA227

pith:2013:JBUVA2272HVKGGVDXQ6PTW6ZTC

not attested not anchored not stored refs pending

k-d Match: A Fast Matching Algorithm for Sheared Stellar Samples

Astronomy, Canada), Jeremy S. Heyl (Department of Physics, University of British Columbia

arxiv:1304.0838 v2 · 2013-04-03 · 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{JBUVA2272HVKGGVDXQ6PTW6ZTC}

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	2026-05-18T03:26:40.731840Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4869506b5fd1eaa31aa3bc3cf9dbd998823429ed50bed6b1d364da84131aea0c

Aliases

arxiv: 1304.0838 · arxiv_version: 1304.0838v2 · doi: 10.48550/arxiv.1304.0838 · pith_short_12: JBUVA2272HVK · pith_short_16: JBUVA2272HVKGGVD · pith_short_8: JBUVA227

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/JBUVA2272HVKGGVDXQ6PTW6ZTC \
  | 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: 4869506b5fd1eaa31aa3bc3cf9dbd998823429ed50bed6b1d364da84131aea0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19d311eee42bec984ec307dfe64e9b338971c724ab76e38eb0b527be7292b7f4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-04-03T03:58:32Z",
    "title_canon_sha256": "f1793b0a788ca7e04c9c756a6f0a936468cf521f64b2fbf99533976b5e4cfb87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.0838",
    "kind": "arxiv",
    "version": 2
  }
}