Pith Number

pith:QIFBI2Z4

pith:2021:QIFBI2Z4CTNR6SPEFLQEWGYUUC

not attested not anchored not stored refs pending

Hyperelliptic continued fractions in the singular case of genus zero

Francesco Ballini, Francesco Veneziano

arxiv:2108.06560 v1 · 2021-08-14 · 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{QIFBI2Z4CTNR6SPEFLQEWGYUUC}

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	2026-07-05T03:05:55.791625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

820a146b3c14db1f49e42ae04b1b14a0860eef50aeac0b795b6640b33d29b93e

Aliases

arxiv: 2108.06560 · arxiv_version: 2108.06560v1 · doi: 10.48550/arxiv.2108.06560 · pith_short_12: QIFBI2Z4CTNR · pith_short_16: QIFBI2Z4CTNR6SPE · pith_short_8: QIFBI2Z4

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/QIFBI2Z4CTNR6SPEFLQEWGYUUC \
  | 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: 820a146b3c14db1f49e42ae04b1b14a0860eef50aeac0b795b6640b33d29b93e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dad98b485367e0e4a5192e5f7086f2ecf4ae8b72ba59000741fba47626083177",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2021-08-14T15:19:52Z",
    "title_canon_sha256": "e670de36d23f38d18e4b8f741f0c272783d1f30577608482a581d4c7d930342e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.06560",
    "kind": "arxiv",
    "version": 1
  }
}