Pith Number

pith:KTY4TME6

pith:2009:KTY4TME6C7N5XL5FSG6LBL4PAB

not attested not anchored not stored refs pending

PetFMM--A dynamically load-balancing parallel fast multipole library

Felipe A. Cruz, L. A. Barba, Matthew G. Knepley

arxiv:0905.2637 v1 · 2009-05-15 · cs.DC · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KTY4TME6C7N5XL5FSG6LBL4PAB}

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	2026-05-18T04:12:45.009961Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54f1c9b09e17dbdbafa591bcb0af8f0058ebb9bc1454501cc47ce58da208bbe3

Aliases

arxiv: 0905.2637 · arxiv_version: 0905.2637v1 · doi: 10.48550/arxiv.0905.2637 · pith_short_12: KTY4TME6C7N5 · pith_short_16: KTY4TME6C7N5XL5F · pith_short_8: KTY4TME6

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/KTY4TME6C7N5XL5FSG6LBL4PAB \
  | 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: 54f1c9b09e17dbdbafa591bcb0af8f0058ebb9bc1454501cc47ce58da208bbe3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e4c1e948c9afd4a0ce4b9492d9e884b95e9c5d28ad6c739727912bc297b7bd7",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "cs.DC",
    "submitted_at": "2009-05-15T23:46:14Z",
    "title_canon_sha256": "6253b83cc3bb79c4bda515033c1f3563cc1e7de14a03517268fe4092adad90ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.2637",
    "kind": "arxiv",
    "version": 1
  }
}