Pith Number

pith:NPIBVO2M

pith:2014:NPIBVO2M36LTY3FX3YL2M6XAPW

not attested not anchored not stored refs pending

Ostrowski numeration systems, addition and finite automata

Alonza Terry Jr, Philipp Hieronymi

arxiv:1407.7000 v2 · 2014-07-25 · 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{NPIBVO2M36LTY3FX3YL2M6XAPW}

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	2026-05-18T00:15:25.036931Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bd01abb4cdf973c6cb7de17a67ae07da8ad32d5b823b1aed754b96cb7d3f5a6

Aliases

arxiv: 1407.7000 · arxiv_version: 1407.7000v2 · doi: 10.48550/arxiv.1407.7000 · pith_short_12: NPIBVO2M36LT · pith_short_16: NPIBVO2M36LTY3FX · pith_short_8: NPIBVO2M

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/NPIBVO2M36LTY3FX3YL2M6XAPW \
  | 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: 6bd01abb4cdf973c6cb7de17a67ae07da8ad32d5b823b1aed754b96cb7d3f5a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b33d6afcfb9429bbe8d8e68bd7cb8191e1be3eba1b2c02efdbc59d0d91fbd6de",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2014-07-25T18:38:50Z",
    "title_canon_sha256": "98b63b98cd454f7b73517bc4508e465fc35ba89e60d11856c2bb3061951369a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.7000",
    "kind": "arxiv",
    "version": 2
  }
}