Pith Number

pith:DD6D5PL5

pith:2026:DD6D5PL5FYL4UBAPUKTYWWWN5Z

not attested not anchored not stored refs pending

ImmigrationQA: A Source-Grounded Dataset and Small-Model Adaptation for U.S. Immigration Law

Nazarii Shportun

arxiv:2605.30589 v1 · 2026-05-28 · cs.CL · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DD6D5PL5FYL4UBAPUKTYWWWN5Z}

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	2026-06-01T01:03:02.743710Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18fc3ebd7d2e17ca040fa2a78b5acdee6718f28b59de1a92b9bee217fcb6642c

Aliases

arxiv: 2605.30589 · arxiv_version: 2605.30589v1 · doi: 10.48550/arxiv.2605.30589 · pith_short_12: DD6D5PL5FYL4 · pith_short_16: DD6D5PL5FYL4UBAP · pith_short_8: DD6D5PL5

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/DD6D5PL5FYL4UBAPUKTYWWWN5Z \
  | 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: 18fc3ebd7d2e17ca040fa2a78b5acdee6718f28b59de1a92b9bee217fcb6642c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9575d7d024ec848c9b0d7c5e9b60f0083b1a37c9095abe7877b09349c758e040",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2026-05-28T21:36:18Z",
    "title_canon_sha256": "ba8c4259810e434681b6695d6c969f762eaada710c1cfab03760820c17b4ce22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.30589",
    "kind": "arxiv",
    "version": 1
  }
}