Pith Number

pith:VUPYIABJ

pith:2026:VUPYIABJ5G4KIF3EPAQR2LLB3G

not attested not anchored not stored refs pending

MATCHA: Matching Text via Contrastive Semantic Alignment

Carsten Eickhoff, Ece Sena Etoglu, Seyed Ali Bahrainian, Siran Li

arxiv:2605.27345 v1 · 2026-05-26 · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VUPYIABJ5G4KIF3EPAQR2LLB3G}

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	2026-05-27T02:06:19.012511Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad1f840029e9b8a4176478211d2d61d9ab7eab502ce73c1a09c3d9caacec9e97

Aliases

arxiv: 2605.27345 · arxiv_version: 2605.27345v1 · doi: 10.48550/arxiv.2605.27345 · pith_short_12: VUPYIABJ5G4K · pith_short_16: VUPYIABJ5G4KIF3E · pith_short_8: VUPYIABJ

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/VUPYIABJ5G4KIF3EPAQR2LLB3G \
  | 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: ad1f840029e9b8a4176478211d2d61d9ab7eab502ce73c1a09c3d9caacec9e97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae0a5272f863ec00a0916dff34b121a5f9ac9651c5a3443aafbdf9c41fae95d6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-05-26T17:47:14Z",
    "title_canon_sha256": "929417e6842cc3f218205a362b695386c6a278f2f6060a2d63f63bfe5bfdf524"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.27345",
    "kind": "arxiv",
    "version": 1
  }
}