Pith Number

pith:TBF7ON7W

pith:2019:TBF7ON7WSIM2W4MBRWNP4S3XOY

not attested not anchored not stored refs pending

The largest angle bisection procedure

Dan Ismailescu, Jeewoo Lee, Joehyun Kim, Kelvin Kim

arxiv:1908.02749 v2 · 2019-08-06 · math.MG · math.HO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TBF7ON7WSIM2W4MBRWNP4S3XOY}

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	2026-07-05T00:07:52.710475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

984bf737f69219ab71818d9afe4b7776364ba2f22ea581ae93b1036c532c9441

Aliases

arxiv: 1908.02749 · arxiv_version: 1908.02749v2 · doi: 10.48550/arxiv.1908.02749 · pith_short_12: TBF7ON7WSIM2 · pith_short_16: TBF7ON7WSIM2W4MB · pith_short_8: TBF7ON7W

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/TBF7ON7WSIM2W4MBRWNP4S3XOY \
  | 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: 984bf737f69219ab71818d9afe4b7776364ba2f22ea581ae93b1036c532c9441

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65594708a024a60aa3047e11f422d96a96b36e1db975530cf3949b2d2c6fc903",
    "cross_cats_sorted": [
      "math.HO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2019-08-06T18:05:54Z",
    "title_canon_sha256": "2ba080c880f51744cb185af2aa28052a7496f7a8ccc875b8a65f722b5ce0c6ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02749",
    "kind": "arxiv",
    "version": 2
  }
}