Pith Number

pith:Z2WEBEFO

pith:2025:Z2WEBEFOUKOYAY324UNMPGOXU4

not attested not anchored not stored refs pending

Test-Time Alignment of Text-to-Image Diffusion Models via Null-Text Embedding Optimisation

Henry Gouk, Taehoon Kim, Timothy Hospedales

arxiv:2511.20889 v2 · 2025-11-25 · cs.CV · cs.AI · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z2WEBEFOUKOYAY324UNMPGOXU4}

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	2026-06-23T02:13:18.858777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ceac4090aea29d80637ae51ac799d7a72f13bc0337b73bdd79a1debef8ba7258

Aliases

arxiv: 2511.20889 · arxiv_version: 2511.20889v2 · doi: 10.48550/arxiv.2511.20889 · pith_short_12: Z2WEBEFOUKOY · pith_short_16: Z2WEBEFOUKOYAY32 · pith_short_8: Z2WEBEFO

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/Z2WEBEFOUKOYAY324UNMPGOXU4 \
  | 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: ceac4090aea29d80637ae51ac799d7a72f13bc0337b73bdd79a1debef8ba7258

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e45be15525ebdbe46fa2e10f0fd1b6b4be7050b891b38b46eab95cdbf37d742",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2025-11-25T22:11:51Z",
    "title_canon_sha256": "428a5ec11f90d3fb6ee86a3b19e3f34134103aa92d114f29466387ae388ce7b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2511.20889",
    "kind": "arxiv",
    "version": 2
  }
}