Pith Number

pith:HMZ2U5SH

pith:2014:HMZ2U5SH43E5G4KH2POXY6PGKI

not attested not anchored not stored refs pending

Lighthouse: A User-Centered Web Service for Linear Algebra Software

Boyana Norris, Elizabeth Jessup, Ramya Nair, Sa-Lin Bernstein

arxiv:1408.1363 v1 · 2014-08-06 · cs.MS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HMZ2U5SH43E5G4KH2POXY6PGKI}

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	2026-05-18T02:45:41.466127Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b33aa7647e6c9d37147d3dd7c79e65228f8d9924a45b2859059288989d11dc2

Aliases

arxiv: 1408.1363 · arxiv_version: 1408.1363v1 · doi: 10.48550/arxiv.1408.1363 · pith_short_12: HMZ2U5SH43E5 · pith_short_16: HMZ2U5SH43E5G4KH · pith_short_8: HMZ2U5SH

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/HMZ2U5SH43E5G4KH2POXY6PGKI \
  | 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: 3b33aa7647e6c9d37147d3dd7c79e65228f8d9924a45b2859059288989d11dc2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f6b6bfeb37f66a302a84cc2019b49d51b3e31f6e0452bfe7419f085761a10872",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2014-08-06T17:37:03Z",
    "title_canon_sha256": "bd8426fa9d3b677b5571a831c5a6e9cabed6c17f525f4b6a206268792665149c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.1363",
    "kind": "arxiv",
    "version": 1
  }
}