Pith Number

pith:BY3QJCZZ

pith:2013:BY3QJCZZACFLVEBKUCCBQD6I5D

not attested not anchored not stored refs pending

On the Configuration Spaces of Grassmannian Manifolds

Sandro Manfredini, Simona Settepanella

arxiv:1311.5642 v1 · 2013-11-22 · math.GR · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BY3QJCZZACFLVEBKUCCBQD6I5D}

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	2026-05-18T03:06:23.652489Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e37048b39008aba902aa084180fc8e8f44fcfcbe500d26ff999e70d51955649

Aliases

arxiv: 1311.5642 · arxiv_version: 1311.5642v1 · doi: 10.48550/arxiv.1311.5642 · pith_short_12: BY3QJCZZACFL · pith_short_16: BY3QJCZZACFLVEBK · pith_short_8: BY3QJCZZ

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/BY3QJCZZACFLVEBKUCCBQD6I5D \
  | 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: 0e37048b39008aba902aa084180fc8e8f44fcfcbe500d26ff999e70d51955649

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9f256ef42285a882d168877ad17572ac37d209e085ce93d3384b5d15e20eca9",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GR",
    "submitted_at": "2013-11-22T03:05:30Z",
    "title_canon_sha256": "bb4068c8717b2eda90d5e43eaff93019394d51c6481fc6d811e9f3cede13112e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.5642",
    "kind": "arxiv",
    "version": 1
  }
}