Pith Number

pith:QMA5L6UA

pith:2026:QMA5L6UAAHFQLADZ4C6UVQSWFH

not attested not anchored not stored refs pending

Improving scDiffusion with Sparsity-Biased Classifier-Free Guidance

Hao Sun, Ikuko Nishikawa, Yen-Wei Chen, Yu Song

arxiv:2607.29043 v1 · 2026-07-31 · q-bio.GN · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QMA5L6UAAHFQLADZ4C6UVQSWFH}

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	2026-08-03T01:18:10.553377Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8301d5fa8001cb058079e0bd4ac25629fef165078f46455267911bcbcffcc2c1

Aliases

arxiv: 2607.29043 · arxiv_version: 2607.29043v1 · doi: 10.48550/arxiv.2607.29043 · pith_short_12: QMA5L6UAAHFQ · pith_short_16: QMA5L6UAAHFQLADZ · pith_short_8: QMA5L6UA

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/QMA5L6UAAHFQLADZ4C6UVQSWFH \
  | 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: 8301d5fa8001cb058079e0bd4ac25629fef165078f46455267911bcbcffcc2c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75d27b3be5cde281d44576e46d6347a4d0669391f112c2b8f66520c39a4846b8",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "q-bio.GN",
    "submitted_at": "2026-07-31T05:46:07Z",
    "title_canon_sha256": "551d7ecb9eb4f0e5b98db6aee0cd2ca5748df2ed37dbfc98db50e5faebea6cc9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.29043",
    "kind": "arxiv",
    "version": 1
  }
}