Pith Number

pith:W7RZFQPX

pith:2015:W7RZFQPXFJ5API732VNF2JY3BR

not attested not anchored not stored refs pending

Hyperquadratic continued fractions and automatic sequences

Alain Lasjaunias, Jia-Yan Yao

arxiv:1509.09075 v1 · 2015-09-30 · 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{W7RZFQPXFJ5API732VNF2JY3BR}

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	2026-05-18T01:31:29.157466Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7e392c1f72a7a07a3fbd55a5d271b0c6057d7684445d7778b88a625ef192f4e

Aliases

arxiv: 1509.09075 · arxiv_version: 1509.09075v1 · doi: 10.48550/arxiv.1509.09075 · pith_short_12: W7RZFQPXFJ5A · pith_short_16: W7RZFQPXFJ5API73 · pith_short_8: W7RZFQPX

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/W7RZFQPXFJ5API732VNF2JY3BR \
  | 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: b7e392c1f72a7a07a3fbd55a5d271b0c6057d7684445d7778b88a625ef192f4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23ae6abab667e5b3135bea41a1b8efe101ed7aa380b26bbedbcd88f87c234f87",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2015-09-30T08:45:39Z",
    "title_canon_sha256": "059010bf506e9e4238288a932fb2ae61a07fc61875b750aa85b2c77a682d225a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.09075",
    "kind": "arxiv",
    "version": 1
  }
}