Pith Number

pith:TRYLHKQB

pith:2018:TRYLHKQBGLNRUYHSWWNH5WQVUK

not attested not anchored not stored refs pending

On The Computability of Perfect Subsets of Sets with Positive Measure

Chitat Chong, Wei Li, Wei Wang, Yue Yang

arxiv:1808.06082 v2 · 2018-08-18 · 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{TRYLHKQBGLNRUYHSWWNH5WQVUK}

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	2026-05-18T00:01:43.178686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c70b3aa0132db1a60f2b59a7eda15a29594f39d33f1e161ebc1645c43f45590

Aliases

arxiv: 1808.06082 · arxiv_version: 1808.06082v2 · doi: 10.48550/arxiv.1808.06082 · pith_short_12: TRYLHKQBGLNR · pith_short_16: TRYLHKQBGLNRUYHS · pith_short_8: TRYLHKQB

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/TRYLHKQBGLNRUYHSWWNH5WQVUK \
  | 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: 9c70b3aa0132db1a60f2b59a7eda15a29594f39d33f1e161ebc1645c43f45590

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d68519693ebe0fa99e3c744db2e8b8d3bee21b9cf5b7c7d28c598fb2e05997a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2018-08-18T12:48:03Z",
    "title_canon_sha256": "b209c9b37208004b7461ddee61413e555b32a3a8222b19726144a487f5e75719"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.06082",
    "kind": "arxiv",
    "version": 2
  }
}