Pith Number

pith:2SUR252I

pith:2015:2SUR252IMMFJPPQ4AJ5T27GA73

not attested not anchored not stored refs pending

A Simple and Practical Linear Algebra Library Interface with Static Size Checking

Akinori Abe, Eijiro Sumii

arxiv:1512.01898 v1 · 2015-12-07 · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2SUR252IMMFJPPQ4AJ5T27GA73}

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	2026-05-18T01:25:10.065785Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4a91d7748630a97be1c027b3d7cc0fed4b0a8cfc97935feb991ab8b5504ce08

Aliases

arxiv: 1512.01898 · arxiv_version: 1512.01898v1 · doi: 10.48550/arxiv.1512.01898 · pith_short_12: 2SUR252IMMFJ · pith_short_16: 2SUR252IMMFJPPQ4 · pith_short_8: 2SUR252I

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/2SUR252IMMFJPPQ4AJ5T27GA73 \
  | 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: d4a91d7748630a97be1c027b3d7cc0fed4b0a8cfc97935feb991ab8b5504ce08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d72e8ee001b5d2ffccadb32e399f9074a521e538d679857de04bc43f07f297e2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2015-12-07T03:17:50Z",
    "title_canon_sha256": "5f9346b80e05af7707e71580e628deef1dfa1a0f54ac8b70e333140920df62bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.01898",
    "kind": "arxiv",
    "version": 1
  }
}