Pith Number

pith:VXGKX7JZ

pith:2025:VXGKX7JZ7JIERSJSH6W2ERLJYV

not attested not anchored not stored refs pending

Adaptive Sketching Based Construction of H2 Matrices on GPUs

Pieter Ghysels, Wajih Halim Boukaram, Xiaoye Sherry Li, Yang Liu

arxiv:2506.16759 v1 · 2025-06-20 · 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{VXGKX7JZ7JIERSJSH6W2ERLJYV}

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	2026-07-05T11:24:42.528375Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

adccabfd39fa5048c9323fada24569c578dc453de736d66210c2bcc1f54788f9

Aliases

arxiv: 2506.16759 · arxiv_version: 2506.16759v1 · doi: 10.48550/arxiv.2506.16759 · pith_short_12: VXGKX7JZ7JIE · pith_short_16: VXGKX7JZ7JIERSJS · pith_short_8: VXGKX7JZ

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/VXGKX7JZ7JIERSJSH6W2ERLJYV \
  | 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: adccabfd39fa5048c9323fada24569c578dc453de736d66210c2bcc1f54788f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23dcdc5308dbced13ad70ac6bd4d1f54359794c529aae72685f227dfb604e19f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2025-06-20T05:29:24Z",
    "title_canon_sha256": "90c372393b561b9b910b3c1e94634e131264d20543cbc4f53caf60794b47c0e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.16759",
    "kind": "arxiv",
    "version": 1
  }
}