Pith Number

pith:GDYZVBLX

pith:2016:GDYZVBLXGOXRDYLKCXFP3WEVIB

not attested not anchored not stored refs pending

Cosmetic surgery and the $SL(2,\mathbb{C})$ Casson invariant for two-bridge knots

Kazuhiro Ichihara, Toshio Saito

arxiv:1602.02371 v2 · 2016-02-07 · math.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GDYZVBLXGOXRDYLKCXFP3WEVIB}

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	2026-05-18T01:13:55.751938Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30f19a857733af11e16a15cafdd8954044577885666cb75d87898126d920c3bc

Aliases

arxiv: 1602.02371 · arxiv_version: 1602.02371v2 · doi: 10.48550/arxiv.1602.02371 · pith_short_12: GDYZVBLXGOXR · pith_short_16: GDYZVBLXGOXRDYLK · pith_short_8: GDYZVBLX

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/GDYZVBLXGOXRDYLKCXFP3WEVIB \
  | 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: 30f19a857733af11e16a15cafdd8954044577885666cb75d87898126d920c3bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13523afd689b9924f3ad3c6da74e5b826b1549c912272b4474869c5e2bc80d43",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2016-02-07T13:06:41Z",
    "title_canon_sha256": "b793c665195106e225dd989bc843392193be1908defebd58bbeab98176d7b552"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.02371",
    "kind": "arxiv",
    "version": 2
  }
}