Pith Number

pith:E4PYUP3W

pith:2014:E4PYUP3WZDDJCYNR4LOKTZHD3V

not attested not anchored not stored refs pending

Turing degree spectra of differentially closed fields

David Marker, Russell Miller

arxiv:1406.3637 v2 · 2014-06-13 · 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{E4PYUP3WZDDJCYNR4LOKTZHD3V}

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	2026-05-18T00:24:02.552257Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

271f8a3f76c8c69161b1e2dca9e4e3dd76f5b1a388d86c91d2d416aac8a258f7

Aliases

arxiv: 1406.3637 · arxiv_version: 1406.3637v2 · doi: 10.48550/arxiv.1406.3637 · pith_short_12: E4PYUP3WZDDJ · pith_short_16: E4PYUP3WZDDJCYNR · pith_short_8: E4PYUP3W

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/E4PYUP3WZDDJCYNR4LOKTZHD3V \
  | 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: 271f8a3f76c8c69161b1e2dca9e4e3dd76f5b1a388d86c91d2d416aac8a258f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "300f943106bc13f351a7641a346425ae9376d934aa3cf0f4065a6f32f9746441",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2014-06-13T20:11:48Z",
    "title_canon_sha256": "6c962d8ae99d4499c391d66cb8b78cecadb95c782901cbd3b649768495b811c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.3637",
    "kind": "arxiv",
    "version": 2
  }
}