Pith Number

pith:Q5IBYKWM

pith:2026:Q5IBYKWMF2TNXH5FLXKG7AIUTT

not attested not anchored not stored refs pending

The Value of Covariance Matching in Gaussian DDPMs and the Lanczos Sampler

Adam D. Jozefiak, Aymane El Gadarri, Md Sahil Akhtar, Vivek F. Farias

arxiv:2605.22723 v1 · 2026-05-21 · cs.LG · cs.AI · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q5IBYKWMF2TNXH5FLXKG7AIUTT}

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	2026-05-22T02:04:52.017226Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87501c2acc2ea6db9fa55dd46f81149cde1ddc527331ae9a8ef1a63d87d79daa

Aliases

arxiv: 2605.22723 · arxiv_version: 2605.22723v1 · doi: 10.48550/arxiv.2605.22723 · pith_short_12: Q5IBYKWMF2TN · pith_short_16: Q5IBYKWMF2TNXH5F · pith_short_8: Q5IBYKWM

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/Q5IBYKWMF2TNXH5FLXKG7AIUTT \
  | 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: 87501c2acc2ea6db9fa55dd46f81149cde1ddc527331ae9a8ef1a63d87d79daa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b8cc55d09ec4f0069f6d20604f1d9569dad1a8806885346e4538e8b9719c546",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-21T16:57:27Z",
    "title_canon_sha256": "408e7c4078d92ea7400102d61ee0fd85ecec1326d5fbc019632362c73e74ce11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.22723",
    "kind": "arxiv",
    "version": 1
  }
}