Pith Number

pith:NQY534TQ

pith:2019:NQY534TQH4D5DJ75A66F54S3HT

not attested not anchored not stored refs pending

On the Submodularity of Diffusion Models: Equivalent Conditions and Applications

Chong Di, Fangqi Li, Wenwen Xia

arxiv:2002.00845 v2 · 2019-12-27 · cs.SI · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NQY534TQH4D5DJ75A66F54S3HT}

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	2026-07-05T00:44:07.873243Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c31ddf2703f07d1a7fd07bc5ef25b3cd367ce725d991190905cd96d1fccda41

Aliases

arxiv: 2002.00845 · arxiv_version: 2002.00845v2 · doi: 10.48550/arxiv.2002.00845 · pith_short_12: NQY534TQH4D5 · pith_short_16: NQY534TQH4D5DJ75 · pith_short_8: NQY534TQ

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/NQY534TQH4D5DJ75A66F54S3HT \
  | 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: 6c31ddf2703f07d1a7fd07bc5ef25b3cd367ce725d991190905cd96d1fccda41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "71aec3fc20793bb0680f47e0a7252182d260284e45ed8b4fb1e87387082f9165",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2019-12-27T17:10:12Z",
    "title_canon_sha256": "8f46575c0f591aecb833ca827a00557098b07155496b3a48fc7f86d9c9c12fb2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.00845",
    "kind": "arxiv",
    "version": 2
  }
}