Pith Number

pith:U7XSQVGQ

pith:2013:U7XSQVGQKCQJSYX2VKOZJBST6E

not attested not anchored not stored refs pending

Parallel Astronomical Data Processing with Python: Recipes for multicore machines

Lisa-Marie Browne, Navtej Singh, Ray Butler

arxiv:1306.0573 v1 · 2013-06-03 · astro-ph.IM · cs.DC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U7XSQVGQKCQJSYX2VKOZJBST6E}

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	2026-05-18T03:17:24.217667Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7ef2854d050a09962faaa9d948653f1023a4ab81bc9010c2c8c2b63d50d1fc9

Aliases

arxiv: 1306.0573 · arxiv_version: 1306.0573v1 · doi: 10.48550/arxiv.1306.0573 · pith_short_12: U7XSQVGQKCQJ · pith_short_16: U7XSQVGQKCQJSYX2 · pith_short_8: U7XSQVGQ

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/U7XSQVGQKCQJSYX2VKOZJBST6E \
  | 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: a7ef2854d050a09962faaa9d948653f1023a4ab81bc9010c2c8c2b63d50d1fc9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63bdbcd6fc4f7b86bc2657c98d6021ab38f4bc7007a7eac899f2fa33598a755e",
    "cross_cats_sorted": [
      "cs.DC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-06-03T20:00:04Z",
    "title_canon_sha256": "22139c534434f4728082bc63a476791be9dca15adfadd5df393abb73fb851d60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.0573",
    "kind": "arxiv",
    "version": 1
  }
}