Pith Number

pith:EG4PHHPB

pith:2014:EG4PHHPBRMBNBAQCO7I2QP2FS7

not attested not anchored not stored refs pending

Infinite subsets of random sets of integers

Bj{\o}rn Kjos-Hanssen

arxiv:1408.2881 v1 · 2014-08-12 · 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{EG4PHHPBRMBNBAQCO7I2QP2FS7}

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	2026-05-18T02:45:21.044836Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21b8f39de18b02d0820277d1a83f4597dd04ba8008f943f5ca7b7b22938973a2

Aliases

arxiv: 1408.2881 · arxiv_version: 1408.2881v1 · doi: 10.48550/arxiv.1408.2881 · pith_short_12: EG4PHHPBRMBN · pith_short_16: EG4PHHPBRMBNBAQC · pith_short_8: EG4PHHPB

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/EG4PHHPBRMBNBAQCO7I2QP2FS7 \
  | 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: 21b8f39de18b02d0820277d1a83f4597dd04ba8008f943f5ca7b7b22938973a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd4db129b0f23b7c5fa78275933905fdb02213f396c2796f26a1a7d2b9efce34",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2014-08-12T23:45:33Z",
    "title_canon_sha256": "a71aac6d1fa53f45d680f58eb921fc56bc9bb810026c4fb0a700e8ae9ea702fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.2881",
    "kind": "arxiv",
    "version": 1
  }
}