Pith Number

pith:KNAZPRDU

pith:2015:KNAZPRDUHWZHV74UQGZ6IDNFRM

not attested not anchored not stored refs pending

The arc space of the Grassmannian

Antonio Nigro, Roi Docampo

arxiv:1510.08833 v2 · 2015-10-29 · 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{KNAZPRDUHWZHV74UQGZ6IDNFRM}

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.

Cited by

1 paper in Pith

On the Nash problem for terminal threefolds of type $cA/r$

Receipt and verification

First computed	2026-05-18T00:55:04.260539Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

534197c4743db27aff9481b3e40da58b15e181456d167a5b0665bab8e2d86fe9

Aliases

arxiv: 1510.08833 · arxiv_version: 1510.08833v2 · doi: 10.48550/arxiv.1510.08833 · pith_short_12: KNAZPRDUHWZH · pith_short_16: KNAZPRDUHWZHV74U · pith_short_8: KNAZPRDU

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/KNAZPRDUHWZHV74UQGZ6IDNFRM \
  | 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: 534197c4743db27aff9481b3e40da58b15e181456d167a5b0665bab8e2d86fe9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2f86e4d381da07cb77dc68aa67c3c7493a1aff6be8a4f96a03fcff7068f97c6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-10-29T19:38:44Z",
    "title_canon_sha256": "90859a533eafe49668467ec7763bcd52068c183fad6c409e61e8c114b6b75d64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.08833",
    "kind": "arxiv",
    "version": 2
  }
}