Pith Number

pith:GO53NYYS

pith:2019:GO53NYYSTQRH6RX2BQKDUXJNY2

not attested not anchored not stored refs pending

Cardinality of a floor function set

Randell Heyman

arxiv:1905.00533 v2 · 2019-05-02 · math.NT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GO53NYYSTQRH6RX2BQKDUXJNY2}

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	2026-05-17T23:46:03.096979Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33bbb6e3129c227f46fa0c143a5d2dc68ee23eef04bf47e5dae5a66f39ab611f

Aliases

arxiv: 1905.00533 · arxiv_version: 1905.00533v2 · doi: 10.48550/arxiv.1905.00533 · pith_short_12: GO53NYYSTQRH · pith_short_16: GO53NYYSTQRH6RX2 · pith_short_8: GO53NYYS

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/GO53NYYSTQRH6RX2BQKDUXJNY2 \
  | 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: 33bbb6e3129c227f46fa0c143a5d2dc68ee23eef04bf47e5dae5a66f39ab611f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0b322c079f91c65a0b6c3101009a41f65489aab9d727fb524ae1bb9dc48c563",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2019-05-02T00:06:02Z",
    "title_canon_sha256": "be9f2aed6eeefa5a54e399459ae2a10b9b808ce6c163bc8a7fc1206f585db16b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.00533",
    "kind": "arxiv",
    "version": 2
  }
}