Pith Number

pith:6T3CUIYJ

pith:2009:6T3CUIYJ2DAIKYIFUFNB7UFXUC

not attested not anchored not stored refs pending

SAPPORO: A way to turn your graphics cards into a GRAPE-6

Evghenii Gaburov, Simon Portegies Zwart, Stefan Harfst

arxiv:0902.4463 v2 · 2009-02-25 · 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{6T3CUIYJ2DAIKYIFUFNB7UFXUC}

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	2026-05-18T02:14:38.889824Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4f62a2309d0c0856105a15a1fd0b7a09dd90dc52541636a7a0896558082f99a

Aliases

arxiv: 0902.4463 · arxiv_version: 0902.4463v2 · doi: 10.48550/arxiv.0902.4463 · pith_short_12: 6T3CUIYJ2DAI · pith_short_16: 6T3CUIYJ2DAIKYIF · pith_short_8: 6T3CUIYJ

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/6T3CUIYJ2DAIKYIFUFNB7UFXUC \
  | 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: f4f62a2309d0c0856105a15a1fd0b7a09dd90dc52541636a7a0896558082f99a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae22a5d322bf0a47435e4f17127a6b49eba502c076cc3b05a07f1e0a8159b58b",
    "cross_cats_sorted": [
      "cs.DC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-02-25T21:00:05Z",
    "title_canon_sha256": "ba568a3ab966d1cea79a46cfa736a515cd3f82d58ecc61703aa2f08f59735539"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.4463",
    "kind": "arxiv",
    "version": 2
  }
}