Pith Number

pith:UC7PGTJG

pith:2025:UC7PGTJGWRJPKZJ757TNGTSGTQ

not attested not anchored not stored refs pending

Direct Diffusion Score Preference Optimization via Stepwise Contrastive Policy-Pair Supervision

Dohyun Kim, Paul Hongsuck Seo, Seung Wook Kim, Seungwoo Lyu

arxiv:2512.23426 v2 · 2025-12-29 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UC7PGTJGWRJPKZJ757TNGTSGTQ}

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	2026-07-03T00:16:51.730608Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0bef34d26b452f5653fefe6d34e469c1ceac38ce40800895616feb4c07bdea9

Aliases

arxiv: 2512.23426 · arxiv_version: 2512.23426v2 · doi: 10.48550/arxiv.2512.23426 · pith_short_12: UC7PGTJGWRJP · pith_short_16: UC7PGTJGWRJPKZJ7 · pith_short_8: UC7PGTJG

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/UC7PGTJGWRJPKZJ757TNGTSGTQ \
  | 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: a0bef34d26b452f5653fefe6d34e469c1ceac38ce40800895616feb4c07bdea9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4ae28a076dd8e3bbfb4d30622bff1172ae8b5587defbb8359b694b3fa75b499",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2025-12-29T12:46:07Z",
    "title_canon_sha256": "e90fdc91564e6e646dfc7bf62938ff609fd7f9b580cf8cd4c715f53cb953c5c1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2512.23426",
    "kind": "arxiv",
    "version": 2
  }
}