Pith Number

pith:F47LF4S2

pith:2014:F47LF4S2TV47PIURFKOZZLQFWI

not attested not anchored not stored refs pending

Existentially closed fields with G-derivations

Daniel Hoffmann, Piotr Kowalski

arxiv:1404.7475 v3 · 2014-04-29 · 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{F47LF4S2TV47PIURFKOZZLQFWI}

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	2026-05-17T23:45:21.410450Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f3eb2f25a9d79f7a2912a9d9cae05b23de175b772a378fe816dac6aca923f30

Aliases

arxiv: 1404.7475 · arxiv_version: 1404.7475v3 · doi: 10.48550/arxiv.1404.7475 · pith_short_12: F47LF4S2TV47 · pith_short_16: F47LF4S2TV47PIUR · pith_short_8: F47LF4S2

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/F47LF4S2TV47PIURFKOZZLQFWI \
  | 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: 2f3eb2f25a9d79f7a2912a9d9cae05b23de175b772a378fe816dac6aca923f30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1af870181390a6c05cdead5bd7d9918c04702630c6093b1ac79db69fc74f46c6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2014-04-29T19:34:31Z",
    "title_canon_sha256": "616cac660b3b0c2b752c912102343b35f7da85a45d2dd75d07c57a2a7d7b061c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.7475",
    "kind": "arxiv",
    "version": 3
  }
}