Pith Number

pith:BY5PHUI3

pith:2017:BY5PHUI3HTSQVTTTHJBNQ2KC25

not attested not anchored not stored refs pending

On a theorem by Kippenhahn

Stephan Weis

arxiv:1705.00935 v1 · 2017-05-02 · math.AG · math.OA · quant-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BY5PHUI3HTSQVTTTHJBNQ2KC25}

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	2026-05-18T00:45:09.330645Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e3af3d11b3ce50ace733a42d86942d744c111650eafcc68fbcfc5cd000bdc45

Aliases

arxiv: 1705.00935 · arxiv_version: 1705.00935v1 · doi: 10.48550/arxiv.1705.00935 · pith_short_12: BY5PHUI3HTSQ · pith_short_16: BY5PHUI3HTSQVTTT · pith_short_8: BY5PHUI3

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/BY5PHUI3HTSQVTTTHJBNQ2KC25 \
  | 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: 0e3af3d11b3ce50ace733a42d86942d744c111650eafcc68fbcfc5cd000bdc45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9bd1d0cf08900ff295d1d4f2a995d21015862550fd3f824cffe9c3b9e7c64a0",
    "cross_cats_sorted": [
      "math.OA",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-05-02T12:13:44Z",
    "title_canon_sha256": "591df18a4b3a74c25ec363c664ddf6fd522a8eca4aa5aefd168977b7a1c710cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.00935",
    "kind": "arxiv",
    "version": 1
  }
}