Pith Number

pith:AMLLF3KG

pith:2010:AMLLF3KGSKBOAHXVOFOP5VKYWB

not attested not anchored not stored refs pending

K_0 of hypersurfaces defined by x_1^2+ ... + x_n^2 = \pm 1

Manoj K Keshari, Satya Mandal

arxiv:1010.5880 v1 · 2010-10-28 · math.KT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AMLLF3KGSKBOAHXVOFOP5VKYWB}

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	2026-05-18T02:45:29.163689Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0316b2ed469282e01ef5715cfed558b0722b699d0349fe4fc136d0bbfef04849

Aliases

arxiv: 1010.5880 · arxiv_version: 1010.5880v1 · doi: 10.48550/arxiv.1010.5880 · pith_short_12: AMLLF3KGSKBO · pith_short_16: AMLLF3KGSKBOAHXV · pith_short_8: AMLLF3KG

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/AMLLF3KGSKBOAHXVOFOP5VKYWB \
  | 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: 0316b2ed469282e01ef5715cfed558b0722b699d0349fe4fc136d0bbfef04849

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f17117d6bd406fd498698d0bfe4917e5f4ceb147c13da84f7c43d8ea367fbff2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.KT",
    "submitted_at": "2010-10-28T07:39:54Z",
    "title_canon_sha256": "187965f3ce456d765c00ea50f7f34c948fe8be1f4457c3d237b1ea81e1fdb71a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.5880",
    "kind": "arxiv",
    "version": 1
  }
}