Pith Number

pith:ERYXN4W2

pith:2016:ERYXN4W232GO7FG3NWVLR7EQQ6

not attested not anchored not stored refs pending

Incircular nets and confocal conics

Alexander I. Bobenko, Arseniy Akopyan

arxiv:1602.04637 v2 · 2016-02-15 · math.MG · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ERYXN4W232GO7FG3NWVLR7EQQ6}

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	2026-05-18T00:31:56.253171Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

247176f2dade8cef94db6daab8fc9087a94d790440148df57e540de9bbc4d060

Aliases

arxiv: 1602.04637 · arxiv_version: 1602.04637v2 · doi: 10.48550/arxiv.1602.04637 · pith_short_12: ERYXN4W232GO · pith_short_16: ERYXN4W232GO7FG3 · pith_short_8: ERYXN4W2

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/ERYXN4W232GO7FG3NWVLR7EQQ6 \
  | 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: 247176f2dade8cef94db6daab8fc9087a94d790440148df57e540de9bbc4d060

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f05d68e16da2fa61929b0f45043978144c08758491b1935b50e3246ce3e6b6a",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2016-02-15T11:36:40Z",
    "title_canon_sha256": "8635f19256bd622894a624bc450f00562d1661925fdd0c6ccb837fdb81b5b48b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.04637",
    "kind": "arxiv",
    "version": 2
  }
}