Pith Number

pith:PGBURR6Y

pith:2018:PGBURR6YCFEEHI3GKRYDCTYY2J

not attested not anchored not stored refs pending

Second homotopy and invariant geometry of flag manifolds

Lino Grama, Lucas Seco

arxiv:1803.01290 v1 · 2018-03-04 · math.DG · math.AT · math.RT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PGBURR6YCFEEHI3GKRYDCTYY2J}

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	2026-05-18T00:22:01.158851Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

798348c7d8114843a3665470314f18d242901fd26f005d4158338f4af4b0cc6c

Aliases

arxiv: 1803.01290 · arxiv_version: 1803.01290v1 · doi: 10.48550/arxiv.1803.01290 · pith_short_12: PGBURR6YCFEE · pith_short_16: PGBURR6YCFEEHI3G · pith_short_8: PGBURR6Y

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/PGBURR6YCFEEHI3GKRYDCTYY2J \
  | 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: 798348c7d8114843a3665470314f18d242901fd26f005d4158338f4af4b0cc6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61db5f42a0f577f931f60d4f7acadaddfa76c7a3ea018ddc7c7b1de190d00253",
    "cross_cats_sorted": [
      "math.AT",
      "math.RT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2018-03-04T03:46:22Z",
    "title_canon_sha256": "4d8ef613406f78e2ca8e34b826c1f654650c7a96520e9629711ce0959a849d0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.01290",
    "kind": "arxiv",
    "version": 1
  }
}