Pith Number

pith:FZRD6EPK

pith:2019:FZRD6EPK3JCHWFUO2JIA6DJLLZ

not attested not anchored not stored refs pending

Immediately algebraically closed fields

Peter Sinclair

arxiv:1902.05830 v3 · 2019-02-15 · 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{FZRD6EPK3JCHWFUO2JIA6DJLLZ}

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	2026-07-05T04:44:26.701199Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e623f11eada447b168ed2500f0d2b5e4e7567cd171fd4992f7861223857b714

Aliases

arxiv: 1902.05830 · arxiv_version: 1902.05830v3 · doi: 10.48550/arxiv.1902.05830 · pith_short_12: FZRD6EPK3JCH · pith_short_16: FZRD6EPK3JCHWFUO · pith_short_8: FZRD6EPK

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/FZRD6EPK3JCHWFUO2JIA6DJLLZ \
  | 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: 2e623f11eada447b168ed2500f0d2b5e4e7567cd171fd4992f7861223857b714

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7756d819a519f3800b08e59cf38a9d9d29ca1856995d226a547e716a150a6d0e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2019-02-15T14:57:29Z",
    "title_canon_sha256": "92135584894795268e8ce16d13ee2c8b350fcb5b4f2a3f47b055ff51ec71f19d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05830",
    "kind": "arxiv",
    "version": 3
  }
}