Pith Number

pith:F4ZXGXHL

pith:2017:F4ZXGXHLWJACTSKYQTHAC7HUVP

not attested not anchored not stored refs pending

On Mori cone of Bott towers

B. Narasimha Chary

arxiv:1706.02139 v3 · 2017-06-07 · 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{F4ZXGXHLWJACTSKYQTHAC7HUVP}

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	2026-05-17T23:54:32.024491Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f33735cebb24029c95884ce017cf4abe9c1c566090fead8533d382196060996

Aliases

arxiv: 1706.02139 · arxiv_version: 1706.02139v3 · doi: 10.48550/arxiv.1706.02139 · pith_short_12: F4ZXGXHLWJAC · pith_short_16: F4ZXGXHLWJACTSKY · pith_short_8: F4ZXGXHL

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/F4ZXGXHLWJACTSKYQTHAC7HUVP \
  | 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: 2f33735cebb24029c95884ce017cf4abe9c1c566090fead8533d382196060996

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca82d9f2f996457d8721555b3e333fa52912909bab025337f7dbacf66c35ddb5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2017-06-07T11:50:44Z",
    "title_canon_sha256": "7fd7c8305b3166b1027a71cf7efa10028e8e4118bc797be71ee288b1a53ec5d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.02139",
    "kind": "arxiv",
    "version": 3
  }
}