Pith Number

pith:JHP5VBTI

pith:2018:JHP5VBTI7HBEI2BOUUVQVP7XKC

not attested not anchored not stored refs pending

Acceleration of the tree method with SIMD instruction set

Tetsushi Kodama, Tomoaki Ishiyama

arxiv:1812.07313 v2 · 2018-12-18 · 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{JHP5VBTI7HBEI2BOUUVQVP7XKC}

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	2026-05-17T23:54:15.508980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49dfda8668f9c244682ea52b0abff750acf7defad866032f8bd2afb2a95f77e9

Aliases

arxiv: 1812.07313 · arxiv_version: 1812.07313v2 · doi: 10.48550/arxiv.1812.07313 · pith_short_12: JHP5VBTI7HBE · pith_short_16: JHP5VBTI7HBEI2BO · pith_short_8: JHP5VBTI

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/JHP5VBTI7HBEI2BOUUVQVP7XKC \
  | 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: 49dfda8668f9c244682ea52b0abff750acf7defad866032f8bd2afb2a95f77e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e42a269d3a1dce466d5860264f3830e1dc34e5343438262991627fc92fb4195",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-12-18T11:48:47Z",
    "title_canon_sha256": "b96fb7282d4d967213a5c72e4551ac392cc6a34409099bd710eecf43a724346a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.07313",
    "kind": "arxiv",
    "version": 2
  }
}