Pith Number

pith:FW4GWFKS

pith:2015:FW4GWFKST35W3RF2OR4EGYVFZI

not attested not anchored not stored refs pending

Cycle connectivity and pseudoconcavity of flag domains

Tatsuki Hayama

arxiv:1501.01768 v3 · 2015-01-08 · math.AG · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FW4GWFKST35W3RF2OR4EGYVFZI}

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	2026-05-18T00:52:04.383280Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2db86b15529efb6dc4ba74784362a5ca15c20000069f9f107adb25d4f2162241

Aliases

arxiv: 1501.01768 · arxiv_version: 1501.01768v3 · doi: 10.48550/arxiv.1501.01768 · pith_short_12: FW4GWFKST35W · pith_short_16: FW4GWFKST35W3RF2 · pith_short_8: FW4GWFKS

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/FW4GWFKST35W3RF2OR4EGYVFZI \
  | 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: 2db86b15529efb6dc4ba74784362a5ca15c20000069f9f107adb25d4f2162241

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86e6a873afb2f7da372a8eb59ad846744a4a8d4798d9279866aa6154f180c81b",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-01-08T08:56:10Z",
    "title_canon_sha256": "dbe84887cb909115b9226fd30e4cb188c9d107eb8edee40169a7e290647655e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.01768",
    "kind": "arxiv",
    "version": 3
  }
}