Pith Number

pith:FKEV6KB4

pith:2011:FKEV6KB4ZHSFGPSC5GNXRLU6IL

not attested not anchored not stored refs pending

The Algebraic Boundary of SO(2)-Orbitopes

Rainer Sinn

arxiv:1108.2992 v1 · 2011-08-15 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FKEV6KB4ZHSFGPSC5GNXRLU6IL}

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	2026-05-18T04:15:28.874591Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a895f283cc9e4533e42e99b78ae9e42dbb161c5357ac1397736ea68a834c8d5

Aliases

arxiv: 1108.2992 · arxiv_version: 1108.2992v1 · doi: 10.48550/arxiv.1108.2992 · pith_short_12: FKEV6KB4ZHSF · pith_short_16: FKEV6KB4ZHSFGPSC · pith_short_8: FKEV6KB4

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/FKEV6KB4ZHSFGPSC5GNXRLU6IL \
  | 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: 2a895f283cc9e4533e42e99b78ae9e42dbb161c5357ac1397736ea68a834c8d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61eea62d8f281b174a34944f084e76dec37044a6d38766433ed69bf4b7a976e9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2011-08-15T13:40:01Z",
    "title_canon_sha256": "79e60084847680f544f6a8605d017cf5b9e16f2a26f5cd81f273d1e937db2c81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.2992",
    "kind": "arxiv",
    "version": 1
  }
}