Pith Number

pith:ZUYLX5FL

pith:2015:ZUYLX5FLYFQFNWC6KQKZIERXXV

not attested not anchored not stored refs pending

On model theory of covers of algebraically closed fields

Kaisa Kangas, Tapani Hyttinen

arxiv:1502.01042 v1 · 2015-02-03 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZUYLX5FLYFQFNWC6KQKZIERXXV}

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	2026-05-18T02:27:58.156823Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd30bbf4abc16056d85e5415941237bd6dcbc3d4b4e4ba76136458be8a35e784

Aliases

arxiv: 1502.01042 · arxiv_version: 1502.01042v1 · doi: 10.48550/arxiv.1502.01042 · pith_short_12: ZUYLX5FLYFQF · pith_short_16: ZUYLX5FLYFQFNWC6 · pith_short_8: ZUYLX5FL

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/ZUYLX5FLYFQFNWC6KQKZIERXXV \
  | 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: cd30bbf4abc16056d85e5415941237bd6dcbc3d4b4e4ba76136458be8a35e784

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d1a9e1bcf742aea2fe8eda9b48838ac857d243e5b5ee291b71fa3a1650573c85",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2015-02-03T21:34:50Z",
    "title_canon_sha256": "0471150e4ae78ee54d5d9474bc5e434038947a87b983f8b5d9b4e071d4af4a34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.01042",
    "kind": "arxiv",
    "version": 1
  }
}