Pith Number

pith:BLM6E7AF

pith:2014:BLM6E7AFML4E7DIUOCAUBKWGSA

not attested not anchored not stored refs pending

An analogy between cardinal characteristics and highness properties of oracles

Andr\'e Nies, Andrew Brooke-Taylor, J\"org Brendle, Keng Meng Ng

arxiv:1404.2839 v2 · 2014-04-10 · 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{BLM6E7AFML4E7DIUOCAUBKWGSA}

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	2026-05-18T02:41:59.492230Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ad9e27c0562f84f8d14708140aac6902b67d69822e8f7aa07d0c91f78455b5a

Aliases

arxiv: 1404.2839 · arxiv_version: 1404.2839v2 · doi: 10.48550/arxiv.1404.2839 · pith_short_12: BLM6E7AFML4E · pith_short_16: BLM6E7AFML4E7DIU · pith_short_8: BLM6E7AF

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/BLM6E7AFML4E7DIUOCAUBKWGSA \
  | 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: 0ad9e27c0562f84f8d14708140aac6902b67d69822e8f7aa07d0c91f78455b5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2c4408ea31ac9a52d014b34d8727fcfd0a587e9c2531d3bb5149f010cc50cd8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2014-04-10T15:02:45Z",
    "title_canon_sha256": "329e85030136121888f0f63223346a9e8250a6364fd7a5ad4d930b92116e2387"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.2839",
    "kind": "arxiv",
    "version": 2
  }
}