Pith Number

pith:LWPKTESA

pith:2014:LWPKTESA4KYITZEWLB5GNYODSQ

not attested not anchored not stored refs pending

Turing degrees in Polish spaces and decomposability of Borel functions

Keng Meng Ng, Takayuki Kihara, Vassilios Gregoriades

arxiv:1410.1052 v2 · 2014-10-04 · 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{LWPKTESA4KYITZEWLB5GNYODSQ}

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	2026-05-18T01:13:38.315662Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d9ea99240e2b089e496587a66e1c3941bf0329228e18748d4805a581e6f99fd

Aliases

arxiv: 1410.1052 · arxiv_version: 1410.1052v2 · doi: 10.48550/arxiv.1410.1052 · pith_short_12: LWPKTESA4KYI · pith_short_16: LWPKTESA4KYITZEW · pith_short_8: LWPKTESA

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/LWPKTESA4KYITZEWLB5GNYODSQ \
  | 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: 5d9ea99240e2b089e496587a66e1c3941bf0329228e18748d4805a581e6f99fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "016fb80d95b2827601a5303aa6dac98e091bfc6a144133c3a3c1909b1cfacee0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2014-10-04T14:49:43Z",
    "title_canon_sha256": "a1b34fdfa382de478ad8c51ae104dea4dfee890571e3c85bedb66db080ac3eb3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.1052",
    "kind": "arxiv",
    "version": 2
  }
}